Minor allowed to gamble

I doubt this does any good after doing some research on the web but here it goes. I caught my 15 years old son gambling on Wild io casino. This is bullshit and I would hope something you don't tolerate. I hope you take measures to make sure this doesn't happen again to some other child. I just wonder how many other children have become victims to these predators. If you don't do something about this I will search for other avenues so something will be done. My uncle works for the US consulate in the Netherlands. If need be I will explore if there's any options for justice that he might be able to help me with through his contacts.