> While they drink less, cannabis, vaping and psychedelics are on the rise.

All of these are cheap. As long as you got a garden and it's legal, growing weed is ridiculously easy - it's literally called weed because it thrives pretty much anywhere. Vapes are much cheaper than cigarettes (eh, we'll see how long that lasts and authorities crack down on shops selling smuggled / greymarket vapes...).

In contrast, going out and getting drunk to the point of getting decently hammered can easily cost you 100€ and more here in Germany, and we have low alcohol taxes...