Depends where you live. In my country kids can't play with slots, lotteries, and even online they would need to commit and identity theft, which isn't easy to pull off, and even harder when someone is a kid.
I have 2 kids, and it's never easy to controll what they see but they still don't have social media and i wouldn't even allow them to have that before they are 18. I might seem like over controlling, but when they are adults they have time to be responsible for themselves, but before that, i am responsible and i slowly grow their responsibility on what's appropriate to their age.
It might seem that way (being over controlling) but, it’s your kids and it’s important you train them the way you want them to grow and so, it becomes how they model their life.
Kids are such a handful but, it’s the job of a parent to contain all their energy and curiosity.
A little more exposure isn’t always a bad idea and am not talking about gambling here but, social life. Letting them experience certain things breaks the gaps or adrenaline that pushes them to try out certain things when they finally get opportune.