For me at age 10 my children should understand the market and how it works, interpreting chats and deciding the next move of each coin from studying the price action of different coins. At age 13 the should start trading with a demo account and at age 15 they should have funded their first account. This would help them become financially independent, also help then limit future gambling prowess and also make them prepared for their careers
My 8-year old son already knows that daddy is into Bitcoin and all the crypto stuff. Sometimes he tries to tease me with it. Once I overheard him say to his siblings that daddy was trying to buy Coingecko 😅😅😅. I later called his attention to what he said and subtly corrected him that Coingecko wasn't a token but a website where different cryptocurrencies are listed. I guess it's because he sees me visiting that site often that makes him think it's a token. BTW, I like the way you chronicled the pattern your kids should go with crypto. For me, I think mine would need to get to the senior secondary school age, and that's from 15–17 years in my country, before I can introduce my kids to trading and all that crypto related businesses. Doing that earlier than that time may cause them to lose focus in formal education and then chase money like Dad is doing.