Why force someone to do something? Everyone has their own choice. If you don't like that someone doesn't understand something, then these are primarily your problems. Maybe he doesn't need it, and when there is a need, this person will look for information about what interests him. It's your job to explain, and if you don't explain something well, find a way to be heard.
I second this. There is nothing you can do that will make someone interested in crypto or just about anything. Even if you just explain it in earnest, they will be interested if they really are curious about it. Otherwise, they will have no interest or whatsoever in learning more about crypto.
But one thing I think will work on a lot of people is if you tell them that you can make money off of crypto. Surely that can catch their attention.