Can you name children in the age categories that have been determined, 15 years and under are still children, because they are still in education, So my understanding is that if you are talking about children aged 10-15 years, perhaps Bitcoin is the best solution for you to introduce, while they understand how to operate a laptop/Android.

Just like you use it and keep it safe, only you are not with your child, but what you do shows him.

I don't think it's necessary, as I said in the first point, as long as they can afford it, what's the harm, Bitcoin can be used by everyone.

I hope you understand what I said above.