Yoda Is Your Father said:
Some people are just extremely narrow-minded, and the worst thing is I am starting to hear my own friends (who are the same age as me and got up to all sorts of things with me when we were kids) making comments not dissimilar to the ones in the article Sean posted. Not only is it hippocritical but it's also sad to see people lose their sense of humour and understanding as they grow older and become boring, paranoid conformists.

You mean they grew up and matured and you've decided not to.

I did some pretty stupid shit when I was younger (I'm 34), but I wouldn't do those same things today and I'd actively discourage people from doing them as well. That doesn't make me hypocritical. It would be stupid for me to not try to warn someone about possible dangers when I've already had the same experience.