I think that in most countries this does not yet exist, but certainly some are already advanced in this regard. The fact that there is no regulation in some cases is what attracts many users, because it has potential to attract people who live in countries where gambling is prohibited.
Gambling is prohibited in many countries. Again it is not prohibited but regulated in some countries. Overall this is the setting of the physical casinos. Bitcoin casinos (nowadays) are getting registered properly. But some are there which prefer the anonymity that crypto provides and not get registerd. Being registered only brings in more trouble. Taxation, legal problems with customers and all.
I mean i think there are but they are simple things such as age, etc
No. A lot more than that.