I don't agree with you on this matter. Now a days mostly schools taught their students about the advancement in technology but certainly they will not tell any thing about how to earn online and digital money etc. these are the things which will only be learned by person himself or through colleagues.
Teenagers now the latest technology and their use, we just need to tell them how bitcoin work in an easy way.
Is the past any different? School never taught us how to pay the tax, they never taught us how to apply on a job, how to answer in an interview. None of these real-life useful things. The school only teach us basic stuffs about science, math, and all those stuff. Basically they are teaching us how to be a knowledge worker. You have to be an expert at something to be qualified in a decent paying job. The rest of the things that you have to know about life, you have to figure them out outside school. Personally, I learned everything else by myself. I asked people around even though most of the time I look foolish since it seems that I don't know the basic stuffs in life.
Earning money online, or earning money in general is the same thing. You have to study first how to do it all by yourself. Well, you can get help from others too.