How was it that you 'saw the light' so to speak of BTC? Fundamentally I think it comes down to people who are able to think for themselves as opposed to relying on the herd for their decision making.
I've always been heavily into value investing and Warren Buffett. I think I came to realize BTC was wildly undervalued and have been digging deeper and learning everything I can about it since.
I think my friend just invested in property cos everyone else was and thats fair as long as things stayed the same but they change and he stopped giving a fuck and relearning more. He also only trusts shit if its done by many many other people or is the norm.
any investment made "because everyone else is" is likely a bad investment where you've missed most of the upside