prohibit advertising of cigarettes and beer and other alcoholic beverages;
Raise the age from which you can legally drink alcohol up to 21 years;
set up fines for parents for the child's drinking and smoking in accordance with clause 2;
(hard measure) for schoolchildren with health that allows intensive sports, a compulsory exam in physical culture according to the standards (will make you smoke and drink less);
Introduce a moratorium on showing films on TV in which people smoke and drink;
maybe something else ...
