I think it's natural that someone can't register at one or more gambling sites because not all casinos can permit that person to register and play gambling there.
I think almost all the casinos has no restriction to open an account. Only few may restrict to open and play on their site for who is under 18 and who is from the black listed country of the gambling site. And if the country is against gambling then the country may restrict all the gambling site, like Islamic country. In this case the users from Islamic country should have to use vpn and in this case many gambling site restrict them to open account as they do not allow using VPN.
Yes, the casino does not have a limit on opening an account but often, the problem is on the user's side because it is related to ISP problems or government regulations. In addition, the casino also, of course, prohibits users under the age of 18 from registering on the casino site. Maybe not all users from Islamic countries can't register on that casino site because I think some of them can register and play gambling in many casinos. And if they really can't register at the casino, I don't think they need to keep trying to sign up using a VPN because that could be difficult for them.
