Timespan; double undermining

That happens in a timespan of weeks, months and years.

Post-drunken regrets happen in a timespan of tomorrow morning.

That alone proves that post-drunken regrets, while likely meaningful only against a background of previous socialisation, don't need to be mediated by further social interaction. By contrast, age based regrets are clearly mediated by further interaction and cannot thus be argued in absence of such.

Basically, the problem with alcohol is its combination of physical and psychological effects.

Alcohol is simultaneously like, for instance, money, in that it lowers your psychological threshold for acceptance of the other's moves; and, for instance, morphine, in that it lowers your capacity for physical resistance. It's thus a lethal combination for anyone who wants to blame someone else; as well as a great pretext to avoid taking responsibility yourself. But the greater problem is that everyone knows this beforehand, which turns this into at the same time descriptive and prescriptive: giving someone alcohol is like giving them both money and morphine - lower her predisposition to resist and make her unlikelier to be able to resist if so she wanted. That is, both seeking to undermine autonomous will and seeking to undermine actual capacity to exercise that will if it is contrary to yours.

I don't think it's the worst of crimes. But I don't think it's exactly too different to, for instance, what the average anti claims "sex tourism / child prostitution / sex trafficking" to be.