It is true that most gamblers who like to bet on their sports do not have extensive knowledge of the sport at stake and some gamblers are only fixated on the odds of the betting options.
Actually this provides a bigger risk but unfortunately no one cares about that and only thinks about the chances of winning.
It is the choice of the gambler to bet even though he has no knowledge prior to the sports he is betting. A more responsible gambler will often consider their knowledge regarding the sports they wanted to bet. So this only means that most gambler that bet on sports that they lack knowledge thinks that sports betting is a chance type of gambling games which we know that is not the case.
It is true that all forms of gambling are a choice and whether they have the knowledge or not to bet is a risk they have to accept when they lose.
But betting on sports without knowledge and experience is the same as gamblers giving up their money to lose because they only rely on their luck while experience and knowledge greatly affect the chances of winning.
It's better to learn all the knowledge about sports before deciding to bet.