It approximates a different risk game, and as such has a different reward schedule. Some people like to play games on hardcore mode (eg: permadeath, 1 life) too.
Not everything needs to be sanitized for one’s safety.
Well, are you advocating crypto for investing, or for the future of money? If the future of money, then you can't ask everyone in society to "well it's going to be more risky! But it's better!". If it's for investing, go ahead, I can also suggest putting all your money on black and have a 50-50 risk of doubling it or going home empty handed.