This is why before someone wants to accept bonuses, they need to read and learn the requirements. If they think they can fill the requirements, they can take the bonuses and play while they fill the requirements. But if somehow they lose, they can not blame anyone because they know the rules.
Casinos will have bonus facilities and promotions to attract customers. They just give that and that will depend on the customers to take it or leave it. After the customers can deposit without taking the bonuses and directly play.
That is the reason why I am not taking any of those bonuses when there's a catch.
There's the requirements that needs to be filled either with a wagering bonus and a certain amount to bet for.
And that will happen before you become eligible and you as a gambler that's asked for that bonus will have to think of it before proceeding.