Good question. Maybe because democracy, capitalism, free speech and free market, or a combination of those? I guess crypto hasn't been among us long enough for it to be proven as dangerous as smoking, gambling, drugs, or other stuff heavily regulated here. Would like to see them banned though.
On a similar issue, I noticed in Austria, when you go to invest in Derivatives on one of these online trading platforms, they're mandated by law to tell you upfront how many of their customers loose money on them. Last time I checked on one platform they said something like ~82% of people loose their money. Ouch!
It seems very good to be mandated by law to inform the Average Joe about the real calculated risk of such gambles, before they burn away their life savings because some crypto bro on Youtube or troll on wallstreetbets told them they'll be millionaires.
https://www.reuters.com/world/europe/belgium-bans-gambling-a...
AFAIK Finland is Europe's biggest gambler. When I went there every bar or club had slot machines, roulette, or poker table. It was insane. Although AFAIK most of their winnings from gambling go to the state to fund social services instead of the pockets of some private megacorporation in Cyprus.