The influence of gambling can penetrate with her young age so better not to let this kind of activities be her hobby best to find alternative ways to be entertain or if she's into other means of making money better to lead her to other options like online selling or something that will keep her busy though depends on how you and your daughter will handle things all got their own opinions about this but the decision remains to both of you.
In fact, the decision isn't up to both parents, but rather the parents alone. This is because, according to labor laws in many countries, minors, or people under 18, cannot get a job. No company can employ them, and parents cannot hire people under 18 to sell things in public or private places. Parents cannot encourage these minors to work to earn money, because it's a crime, punishable by prison.
At least, that's how it is here in my country. The same applies to gambling. Parents should not allow children under 18 to create accounts at casinos or sports betting sites. Parents also cannot allow children under 18 to play slot machines or any other game of chance. Any parent found allowing their child to engage in gambling can be arrested.
5 Penalties People Face When Charged With Underage Gambling
1 - Fines (Between $500 and $1,000)
2 - Driver’s license suspension (Six months)
3 - Probation
4 - Community service
5 - Jail time
https://www.johntumeltycriminaldefense.com/blog/5-penalties-people-face-when-charged-with-underage-gambling/I don't think it's worth running the risk of receiving these penalties, here in my country there are penalties similar to these