so it seems the best thing we can do is to warn them about the dangers of gambling at such an early age and hope they listen to you and do not gamble until they are old enough to understand what they are doing.
Giving them a warning is fine but that's where the kid's curiosity about what's gambling is all about starts.
If I'm a kid, a 6 or 7-year-old boy, always seeing an active gambling community around, I will ask myself, why we kids aren't allowed to play gambling by our parents or seniors even it was allowed on our Law. I saw other kids doing gambling but they aren't stopping. Gambling operators will allow these kids to gamble since it's legal and it's not their responsibility to stop these kids if they really like to play.
So I'm thinking, why not just turned this kid's gambling activity into something resourceful. Let them gamble instead and help them enhanced how to analyze things in a certain situation while doing gambling.