Some casino games offer better odds than others. Some casino games offer multiple bets, and usually, some of those bets are better than others. It’s your job as an intelligent player to be able to discern between good games and bad games, and to discern between good bets and bad bets.
American roulette has a house edge of 5.26%, but you can play European style roulette with a house edge of 2.70% often at the same casino. you just need to be able to discern the difference between the 2 games.