You definitely have valid concerns for a newcomer to the world of cryptocurrencies and the perils of holding your own assets rather than entrusting them to another entity, like a bank.

I think what's even more concerning is that as newcomers come into the fold, do they have the proper practices in place to protect themselves? Are they creating strong passwords, do they care about 2 factor authentication? Do they understand the general process of securing their wallets? Do they understand and care why all these things matter? Will they get lazy and open themselves up to theft? If they can't secure their password well or any of these other things, they're opening themselves up to hacking and theft.