What influences teens to do the things than they likes?

In the years between 13 and 18 of the human, can be find many things than likes teenagers, smoke, drink, drugs, and sex, but what influences for they likes these things?. Teens take very curiosity of cigarrettes, especially the teens with smokers parents, they think that smoke give more "status" and respect for the other people. Same thing happens with drink; the liquor, beer, wine, whisky, tequila, rum, is the various alcholic drinks than teens likes, influence by parents, friends, or simple curiosity. In the issue of drugs adolecents want a strong experience than can´t gives smoke and drink, then gets the drugs; cannabis, cocaine, heroin, are substances than adolescents consume. And finally in this stage of age, teens experience external and internal changes, and present sexual instincts than attracts the teenagers to sex.