Haven't gone through OP, it's interesting to know that, your parents are an observing type and as such, built an interest in the things they see you do quiet often.

And it's also nice the way you did guide there returning child mind on how not to flip the edge and stick to the basics. You know, abstract things like cryptocurrency could be easily understood when your able to merge it with what is more conventional or traditional to the past and present operations. You did such a good job.

This is what I expect of most crypto aware individuals. To educate these minds to be aware even if they might not have or see the need to use it but, it provides some protection of them from scammers who explore the system. An aware and curious parent is more likely not to make mistakes as, they are often the targeted in the scam world. Being aware helps to mitigate.