Sure I guess since they're voluntary. Much harder to opt out of big social media or ad agencies. But that makes my point even stronger since no one is forcing cryptocurrencies down your throat.
I don't know how much sports gambling is regulated but I doubt its meaningful. Gambling is dangerous because a certain personality cannot control themselves. What can regulation do? Put a little warning? Make sure the house advantage is no more than X? That's not what makes gambling dangerous.
Drugs are same story. Heavily regulated to their detriment. At least with illegal drugs you know it's dangerous and could be abused. But when a doctor prescribes you heavy pain killers for a simple injury, it's not obvious how dangerous they are.
Some people get hurt and you could think the scammer portion outweighs the benefits. But saying there are no benefits is wrong
But they are planning to.