I have a 12 year son who seems interested in investing. Should I let him trade on investopedia?

Hey there, dad here. My son, has taken a real interest in trading on investopedia and I don’t think it’s normal. I don’t want him to be focusing on money at this age but, he could get really good at investing.

I mean it, he has a REAL passion for it. Is there something I can do about this situation? I know warren buffet started at 11. Idk I feel it’s too early and I don’t want him feeling sad about loses. Advice?