“Can I bring my kids to a hookah bar?” “Is it fine if they don’t smoke?” “What if I’m just holding my baby?” Parents traveling in Japan with young children, and families going out with teenagers, often ask questions like these. In many places the answer depends on the venue, so it is natural to assume the same is true here.
Here’s the short answer: in Japan, people under 20 cannot enter a smoking area where hookah is smoked. That is the case even if the child doesn’t smoke, even if a parent is with them, and even if the child is a baby. This guide explains the law behind the rule and summarizes what public bodies say about secondhand smoke and carbon monoxide, based on Japanese law and official information.
The short answer: under-20s can’t enter smoking areas
- Under Japan’s amended Health Promotion Act, the manager of a facility with a smoking room must not allow persons under 20 to enter that room.
- Japan’s Ministry of Health, Labour and Welfare explains that under-20s may not enter smoking areas at all, even if they have no intention of smoking.
- None of this changes if a parent is present, if the child won’t smoke, or if the child is a newborn.
In other words, the question is not whether a child smokes but where the child is. A hookah venue’s smoking area is off-limits to anyone under 20, full stop.
The legal basis: the Health Promotion Act and the Ministry’s explanation
Japan’s amended Health Promotion Act, fully in force since April 2020, sets out rules on who may enter smoking areas. According to the law as published on e-Gov Law Search, the Japanese government’s law database, and its official English translation:
| Provision | What it says |
|---|---|
| Article 33, paragraph 5 | The manager of a facility with a dedicated smoking room must not allow persons under 20 to enter that room |
| Article 35, paragraph 7 | The manager of a facility with a smoking-purpose room must not allow persons under 20 to enter that room |
| Article 33, paragraph 2 and Article 35, paragraph 2 | A sign stating that entry by persons under 20 is prohibited must be displayed at the entrance to the smoking room |
The Ministry of Health, Labour and Welfare’s passive smoking prevention site explains that under-20s may not enter smoking areas at all, even when they do not intend to smoke, and that this applies not only to customers but also to employees. The Ministry’s guide to the different types of smoking room also states that entry by under-20s is prohibited in every type of smoking room, including rooms only for heated tobacco.
This is an obligation that the venue itself must follow. Even if a parent tells the staff, “My child won’t smoke,” the venue is not allowed to let the child into the smoking area. It is not a matter of the staff being strict or the venue having a particular policy; the law places the duty on the manager of the facility.
Common questions, answered by the law
“Is it OK if my child doesn’t smoke?”
No. The Ministry of Health, Labour and Welfare says under-20s may not enter smoking areas even when they are not there to smoke. Whether or not the child smokes makes no difference. Sitting quietly with the family, drinking juice or playing on a phone does not turn a smoking area into a place where a child may be.
“What if I’m holding my baby?”
The law prohibits entry by “persons under 20,” and it sets no lower age limit. A baby is under 20, so a baby cannot enter a smoking area either. Carrying the baby in your arms or in a stroller does not change this.
“What about nicotine-free hookah?”
Whether the hookah contains nicotine or not, the place where hookah is smoked is a smoking area, and under-20s cannot enter it. For more on what nicotine-free hookah is, see What Is Nicotine-Free (Herbal) Shisha?.
“What about terrace seats or outdoor areas?”
How terrace seats and similar spaces are treated depends on how each venue has set up its smoking areas. If you have children with you, always check with the venue before you go rather than assuming that an outdoor seat is allowed.
“My child is 18 or 19. Is that OK?”
No. Japan’s age of adulthood is now 18, but the age limit for smoking remains 20. People aged 18 and 19 also cannot enter smoking areas. This can surprise families from countries where 18 is the cutoff for most things. For more detail, see Hookah Age Limit in Japan.
Secondhand smoke and children’s health
Separately from the law, public bodies have said the following about secondhand smoke and carbon monoxide:
- U.S. Centers for Disease Control and Prevention (CDC): secondhand smoke from hookahs contains not only smoke from the tobacco but also smoke from the heat source, such as charcoal. The CDC also lists infants among the people most likely to become ill from carbon monoxide.
- WHO Regional Office for the Eastern Mediterranean: exposure to secondhand smoke from waterpipes can also harm pregnancy.
- Ministry of Health, Labour and Welfare, e-healthnet: passive smoking during pregnancy is considered a definite factor in sudden infant death syndrome (SIDS).
- Children and Families Agency (Japan): guidance included in its guide to supporting breastfeeding and weaning states that smoking and passive smoking during pregnancy and breastfeeding affect the development of the fetus and infant and the secretion of breast milk.
- Tokyo Metropolitan Government: in an enclosed space, there is a risk of carbon monoxide poisoning not only for the person smoking but also for the people around them.
Put simply, the legal rule and the health information point in the same direction. The law keeps under-20s out of smoking areas, and the public bodies above describe why young children, babies and pregnant women in particular are sensitive to hookah smoke and carbon monoxide. These points are a summary of what those bodies have published, not medical advice for an individual child. For the overall health picture, see Is Hookah Dangerous?.
For pregnancy and breastfeeding specifically, see Hookah While Pregnant or Breastfeeding.
For how secondhand hookah smoke affects everyone nearby, see Hookah Secondhand Smoke.
Children smoking: a separate law
Japan also has a law that deals with smoking by young people directly. The Act on the Prohibition of Smoking by Persons Under Twenty Years of Age (二十歳未満ノ者ノ喫煙ノ禁止ニ関スル法律) prohibits smoking by anyone under 20. It also provides that a person with parental authority, or someone in a similar position, who knows that a child under 20 is smoking and does not stop them can be subject to a minor fine (Article 3).
So there are two separate layers. The Health Promotion Act keeps under-20s out of smoking areas, while this older law prohibits them from smoking at all and places a responsibility on parents and guardians who know about it.
Going out with children in Japan
On days when you have children with you, the reliable choice is to pick a venue or place with no smoking area. Save hookah for a day when someone else can look after the kids, or for a night out with adults only.
When you are choosing where to go, the sign at the entrance is a useful guide. Under the Health Promotion Act, the entrance to a smoking room must display a sign stating that entry by persons under 20 is prohibited. Children cannot enter anywhere that displays such a sign. If you are unsure what a sign says, it is worth asking the staff before you walk in with a child.
If you are going out as a group of family or friends, check in advance whether anyone in the group is under 20. If even one person in the group is under 20, that group cannot use a hookah venue together. Sorting this out before you set off saves an awkward moment at the door, especially for families traveling with older teenagers who might look like adults.
A quick checklist for families
- Is everyone in the group 20 or over? If not, choose a place with no smoking area.
- Are you thinking of a terrace or outdoor seat? Check with the venue first.
- Does the entrance have a sign saying under-20s may not enter? Then children cannot go in.
- Are there children waiting outside? Don’t leave them alone; pick a different plan for the day.
FAQ
Can my child wait outside while I smoke hookah?
Leaving a child to wait on their own is not recommended for safety reasons. On days when you have children with you, choose a place with no smoking area.
Can a minor enter if an adult is with them?
No. Whether or not they are accompanied, people under 20 cannot enter smoking areas.
Is it just the venue’s policy that children can’t come in?
No. It is the venue’s legal obligation under the Health Promotion Act. Venues must not allow persons under 20 to enter a smoking room.
Can I bring a baby in a stroller or carrier?
No. The law sets no lower age limit for “persons under 20,” so babies cannot enter smoking areas either, however they are carried.
Can 18- and 19-year-olds go to a hookah bar in Japan?
No. Adulthood in Japan is 18, but the age limit for smoking is still 20, so they cannot enter smoking areas.
Does nicotine-free hookah make it OK for kids?
No. The place where hookah is smoked is a smoking area regardless of nicotine, and under-20s cannot enter it.
Summary
- People under 20 cannot enter a smoking area where hookah is smoked (Health Promotion Act).
- This applies even if the child doesn’t smoke, even with a parent, and even for a baby.
- 18- and 19-year-olds are not allowed either, and nicotine-free hookah makes no difference.
- How terrace seats are treated varies by venue, so check in advance.
- On days out with children, choose a place with no smoking area.
How it works at shisha bar IORI (Gakugei-daigaku, Tokyo)
- Ages 20+ only. The whole venue is a smoking space, so guests under 20 cannot enter, even with a parent or guardian
- Please bring photo ID; for visitors, a passport is best
- We ventilate the room thoroughly and check indoor carbon monoxide levels regularly with a CO monitor
References
- e-Gov Law Search: Health Promotion Act (Japanese)
- e-Gov Law Search: Act on the Prohibition of Smoking by Persons Under Twenty Years of Age (Japanese)
- Ministry of Health, Labour and Welfare, passive smoking prevention site: key points of the amended law (Japanese)
- Ministry of Health, Labour and Welfare, passive smoking prevention site: types of smoking room (Japanese)
- Japanese Law Translation, “Health Promotion Act” (official English translation)
- Centers for Disease Control and Prevention, “Hookahs”
- Centers for Disease Control and Prevention, “Carbon Monoxide Poisoning Basics”
- WHO EMRO, “Tobacco Free Initiative fact sheet: waterpipe tobacco smoking”
- Ministry of Health, Labour and Welfare, e-healthnet: women’s smoking, passive smoking, pregnancy and childbirth (Japanese)
- Children and Families Agency, guide to supporting breastfeeding and weaning, 2019 revision (Japanese)
- Tokyo Metropolitan Government press release, March 2025: waterpipe (shisha) and the risk of carbon monoxide poisoning (Japanese)
