My kids love bitcoin, they have had wallets for 3 years and have introduced the friends to the concept. They are all swapping bitcoin and exchanging things for it. It reminds me of the ted talk by andreas which i have posted below. " try explaining KYC to these kids when their 18", lol 
https://www.youtube.com/watch?v=1AVRVfw-8nE
Edit: watch about 17:00 for exact quote.
https://www.youtube.com/watch?v=1AVRVfw-8nE
Edit: watch about 17:00 for exact quote.
This is a good thing and lucky you that introduced your kids to bitcoin years ago.
I can conclude that your kids know many things about bitcoin and can troubleshoot with transaction/wallet issues because of the 3 year experience.