They did made a good choice to avoid further gambling advertisements that use same way that will attract minors which is not good and can cause problems later on. That is why some gambling sites requires KYC to avoid minors gambling on their platform. I also understand why some doesn't like KYC.
Not all gambling sites require KYC, especially if those gambling sites using crypto to bet. If the minors found crypto gambling sites which has an attractive design and use an interesting image to attract users, the children can play gambling accidentally. We know that when the children can see that the games are really fun for them and can make them stay to play, they will come back to that site.
When it comes to crypto gambling, we don't have to verify ourselves just to play gambling. We can easily register on the site, get inside on the site, play many gambling games. We can only prevent that happen to our children, and always supervise them to care for them.