Recently many countries around the world are now introducing gambling taxation on it citizens and even charging betting houses and casino's some amount of money to operate within it jurisdiction, and recently my country just introduced a 5% Revenue sharing and taking from both betting houses and gambler's winning and this news make me to ask why the government takes such money from gambler's but won't protect the gambler when their is troubles with the betting house.
Because we have loads of cases where gambler's win some huge amount of money and the casino refusing to pay and when reported to the authority you here such things like the casino is not licenced by them or they don't have control over the casino case, the government is only interested in the tax and not protecting the interest of it citizens.
Yes, many players pay taxes only when playing in licensed legal casinos. In this case, such casinos act as tax agents. Casinos independently withhold income tax from the winnings of players (individuals). Thus, the taxpayer (individual) does not have to pay anything to the budget themselves (the casino should take care of this). This system seems reasonable to me.
If we are talking about a casino (or a bookmaker's office) that is not legal in a certain country, then players, as a rule, do not pay taxes on their winnings. At the same time, the state does not protect the interests of the player in any way (if they are violated).
Personally, I am a supporter of paying taxes and fees (since they are usually used by governments for useful purposes, for example, for purposes related to the social protection of the population).