It's crucial to bet on sports you enjoy and understand. Without that, you might end up just chasing losses or making random guesses, which often leads to losing money.
Those who bet on sports they don't like do so blindly and make the chances of losing even greater because of their lack of in-depth understanding of the sport, just like you, I also think such betting is just a way to throw money away because the chances of winning are very unlikely, in my opinion, for those of us who do want to win it is better to bet on the sport that we do know how the rules of the game are, so that we can make rational bet based on more real data and statistics, so that at least it can be a reference for us even if it is not 100% guarantee to win.