Replying to Perception of Drugs and Stuff

its strange to think how our perception of things changes. Back in 6th grade I thought the kids who smoked were asses and throwing their life away, now the majority of people I know smoke occasionally. 7th grade the kids who snuck a beer were bad kids and in 9th grade it was weed. Now it seems like everyone I know smokes weed and its just as trivial as drinking water (not saying its a bad thing) and cocaine has become just as common place and if I find out someone does coke I'm like who cares. I even hear about kids doing heroine. Is it because I was nieve to what kids were doing when I was younger or do we have a drug problem