Fair concern. I think those people likely start with an Unchained, On-ramp, or Bitcoin Adviser products where they hold 0 or 1 of 3 keys, can at least audit on chain, and grow and learn from there. Bitcoin has no reverse button so best for some to slowly learn before yoloing in with everything.
I think this is true everywhere and everyone just blithely underestimates how close their entire lives are to being one hack away from permanently fucked. Most people generally have shit personal technology security and knowledge and are an easy SIM swap away from losing everything. Your Twitter account gets stolen and they tweet something racist/whatever and your company fires you immediately and your reputation is ruined permanently derailing your career and life.