While we discuss ideal age for kid to get introduced crypto, I think we have forgotten, that children today are not very interested in learning or getting new skill. I observe, that children dont want to learn what teachers give at school, and we talk about them learning something extra. I parent, who wants to introduce crypto to children, must put a lot of effort to make that knowledge useful. I think today 1/3 times when parents try to give new knowledge, children answer with «not interested».