You may have noticed in the video I posted that both my Sons are very small. The big one is 5, and he's been "boxing" since around 18mos, punching longer. The little one was closer to 2 before he actually threw a punch. But the thing is, neither of them have ever really been formally taught anything. I don't even want to be their first trainer, they barely listen to me about many things, never mind boxing. I'm just fortunate that there's a couple of good trainers at my gym who'd be happy to start them out. But, before 6 years of age most kids learn best by visual association. Copying. Watching someone do something and figuring out for themselves why they do it. They also MUST feel like they're playing. If it gets too serious, they shut off. Some kids are different and have very intense focus, breaking down each little detail of a thing. But that's pretty rare. So the boxing gym, to my kids, is just like going to a park or something. It's not that serious. This gives them a sense of positivity, the gym is a place they genuinely LIKE. They don't associate it with pain and crap, misery, etc. I hope that lasts, but if they continue to be comfortable there and DO learn the craft (which makes it easier to NOT be hurt there), then they should stay interested. The main thing from me is no pressure. I've seen way too many parents drive their talented and interested kids OUT of the Sport with tremendous pressure and living vicariously. My Sons, at the very least, will get to be their own persons: