In general, I don't really see the "fun" in drinking something that you'll potentially vomit later but that's just me.
I held a position very close to that for a long time. In reality, that's something that will only occur in excess. If you have normally controlled / willed behavior, you won't struggle with moderating yourself once you've started drinking, and there's no way you could get to that point.
The only time I tried drinking was when we celebrated my brother's graduation. The alcohol kicks in after a few sips and the drink tasted like egg yolks. Couldn't even finish half of the glass and it gave me a fucking migraine that I got to sleep it off in order to wear the effects down.
Alcohol varies greatly in taste, texture, alcoholic content/density and side effects. Other things can affect the experience as well. If you haven't been eating or drinking (water/hydrating liquids) much, than the alcohol will hit harder and faster, and may give you headaches, sweating or other undesirable side effects that you normally won't experience (not unlike sugar, when you think about it).
If you don't want to drink, by all means, there's nothing wrong with that. But I can say that personally, as someone who used to hold that view, keeping an open mind can have benefits that you originally may not consider.
That said, I still don't find them worth paying for. I only drink when others are buying. 'Cause I'm cheap like that. xD
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Sorry for off-topic. Back to on-topic: That doesn't look much like the initial concept designs I saw for the leggings you were working on, Russian. I must admit, I'm a bit confused. Are those two separate designs, or did the first simply evolve into something much different?