Luckily, my country has now imposed sanctions on influencers and creators if anyone promotes gambling site advertisements either through uploaded YouTube videos or on other social media stories, maybe this can prevent underage children from not getting to know gambling sites. too early for them and also prevents them from mental damage, because usually small children will definitely do what they see, especially if the gambling site advertisement is promoted by a creator or influencer they idolize.
Unfortunately, our countries, the governments, and our society do things in the wrong way and make everyone suffer. I don't see a problem with an influencer or content creator promoting a casino as long as gambling is legal within a country. The small children you are talking about are the responsibility of their parents, the parents need to make sure that those children are not watching things that aren't for them, there are parental control setups and features in almost everything these days, when are the parents going to use them and leave the content creators alone?
The governments are also not wise enough to think about it. Why impose sanctions on influencers or content creators if gambling is allowed and legal within the country? They do that to earn a living, and they do it for the adults that watch them, they are not responsible if parents nowadays aren't able to take care of their children and keep them away from things that aren't supposed to be around them.