This kind of regret is exactly how you know it is a bullshit scam. No real-world investment behaves like bitcoin. It is massive, souped up penny stock designed to suck in libertarians and tech nerds.
Plus, who the fuck wants to adopt a "currency" where only the early investors get to be rich? Like, a vast majority of the BTC wealth is in a tiny, tiny fraction of people who were mining BTC way back in the day. How in the holy heck is that something you'd want in a mainstream currency?
Isn't that also true of fiat currencies though? Most of the wealth is concentrated in the hands of a few, and passed down through families as inheritance over centuries.