You have a point. Probably some gamblers are thinking the rules of these casinos are just the same so they don't take time reading the ToS before proceeding to gamble. Then if they already face an issue that's the time they will read the rules to know if they violate one of it in connection to their problem.
If only we always read the rules of the casino (everytime we're switching) then we can prevent putting ourselves in a situation caused by our laziness. This can save us from future problems when playing. Because every casinos have their own rules that we need to abide in order for us to gamble without worries. It's not hard but many of us still failed to do so.
Talking about laziness, actually everyone has laziness, but the difference is that some people can realize that their laziness will make it difficult for them in the future. I'm also not a person who really isn't lazy to read the terms and conditions, but I can control myself not to be lazy, more precisely I force myself to read the terms and conditions first. If only everyone realized this, then we wouldn't hear the same problem over and over again.