The outcome of the majority of casino games is mostly controlled by luck rather than ability. Examples that are often used include craps, roulette, and slot machines. Players wager on numerous outcomes in these games, and the casino has an inherent advantage that ensures they will profit in the long term.
Casino gaming is a popular source of entertainment. Instead of looking at it as a means of making money, players should approach it with the intention of having fun.
It's true what you said that the majority of casino games tend to be controlled by luck, but there are also games that are skill-based, for example table games and sports books. So it depends on the player what game they want to choose, whether they want to choose a luck based game or a skill based one, they are free to choose according to their needs.