can someone say to me if in america/europe you guys are like on the tv shows/movies

when u are like 16 u all have casual sex and do drugs and high school has hot guys who are 16 but are like 20 

bc i am 15 and the most exciting thing i have ever done was walk 1 km to go to the mall with my friends eats french fries and guys that are 16/18 seem to have 14 or somethin