I think just give him youtube videos or google links that explain about crypto. Because from the story itself we know what your friend aim, is to get a lot of money from crypto. Although it is what most of people in here aim too, but for people who only want to be rich quickly, they wouldn't care about technology or anything related to crypto, they will care if you tell them how to get profit instantly.
I think this sounds better, I think the friend of OP or let's say if I am the one that wanted to learn about crypto and asking my friend to teach me I would already appreciate if he can give me a links on youtube that I can watch on and legit google links where I can acquire more knowledge. If he will going to teach me it would be a great help but it's not his responsibility to teach me by the way unless I would going to pay him for teaching me. However, I am also glad that I have a friend who knows a lot about this platform and never hesitate to share his knowledge with me but in myself I'd still made my own research about the crypto platform and market on my own.