Many countries have already allowed official gambling at online casinos for their citizens. The citizens can play, deposit, and withdraw money onto their bank accounts of the banks situated in these countries. Creating official and legal website gambling houses on the servers located in these countries is also allowed.
However, a list of states does not allow such activity at all. This is done for a range of reasons. Overall, legal platforms are very beneficial for any country, because they pay huge taxes. However, most governments that issue official bans for online casinos are aware that their legislation is not ready for managing complicated issues of gambling, and there is a chance of frauds due to this.
While citizens of these countries can still gamble and withdraw money via payment systems other than banks, like Skrill or PayPal, there is another issue associated with that. Reputable and reliable casinos have the list of states where online gambling is forbidden and do not accept players from these locations. Changing your IP only to be able to gamble is a bad idea because they will find out your true location as soon as the first money is deposited to your account.
So, check our list of countries that do not allow gambling websites, let alone in land-based casinos:
There are more countries, actually, like almost the whole of Africa, but it is impossible to cover them all.