Couldn't agree with this more I have taught them they don't have to partake in anything just because everyone else is doing it
I don't think anyone teaches their DCs to drink or to eat meat, it's a legal lifestyle choice that we choose to do or not, do you ban your DCs from meat either or are they free to make their own choices as adults (or almost adults).
I enjoy a drink or two, mostly in moderation, occasionally not but it's fun and sociable. I also often drive on a night out so don't drink at all, also fun and sociable. The extremes are totally different which is what you seem focused on, not everyone, including teens go out and get wasted every weekend. As I said we have several alcoholics in the family and we are hugely aware of that slippery slope and how you get to that point.
OTOH I have their mothers telling me exactly what you are telling me and I have DC reporting back that their children are the ones that are completely off their heads because their parents have made it cool to drink.
And in my experience I have witnessed the complete opposite of this. I guess that's what is so good about MN, you can hear about and learn from other peoples experiences and hopefully understand that your(and my) way is not the only or correct way and that potentially we will all have DCs who grow up to be kind, caring and sensible (mostly) adults regardless of whether they drink or not. Presumably that is all of our aims.
To pick up what a PP has mentioned re cost, Es or equivalent are now as low as £2.50 (I live in an area that is low cost for drugs due to accessibility of getting them here), that is a mega cheap night out if you take a pill and drink water. When we were teens it was around a tenner for an E or wrap of Speed, still a cheap night out in comparison. Cost is a real issue.