No, because many bad teenagers are also secretly smoking now! Think of some famous schools, some middle school students carry their teachers and parents behind their backs, smoke and drink alcohol, and do adult things. There are also elderly people. Anyone who has seen Yangshengtang knows that many elderly people also cherish smoking, one box a day. Anyway, smoking is harmful to human body. Experiments show that no matter how old people are, smoking is harmful to the lungs! Easy to lung cancer! One day, the guest of Yangshengtang said that the earliest lung cancer patient he had ever seen was only 7 years old and died of smoking!