I've tried so hard for so long that I've given up to be honest. Last night I had someone tell me that I kept them from buying Bitcoin. I reminded them that I've been trying to get them to buy Bitcoin for 14 years. That I physically took their phone, made a coinbase account, and bought 400 BTC for them only to have them refuse to verify the account and get the BTC purchase refunded. They were like, "oh ya..."
People have to figure it out on their own. You can lead a horse to water, but in this case they'll refuse the water to eat a pile of shit and then blame you for it.
You've had a purely negative experience. Perhaps most people are actually trying to somehow turn away from something they are unfamiliar with and have little interest in, as they believe themselves. Especially now, when there are more and more tech-savvy scammers out there, people are simply afraid of losing their money or some property on some “newfangled investment idea”. And another reason is that people have little faith in success, meaning that even in situations where the investment amount is minimal they don't want to take the risk or waste their time on it.