There’s nothing wrong with it in your early 20s. The only issue is when your mother continues to be “mommy” and these guys have no clue how to do laundry, cook, clean up their own mess, and do other real adult things.
If the parents are creating a failure to launch type of situation or if you stay there into your 30s or 40s, then it’s an issue. Staying home in your early 20s to save money and be more prepared for the world is a great move though.
This obviously sounds ridiculous, but jealousy is a motherfucker and if you don’t think the underpaid rookie cops working the 3am shift would make an example or take out their frustrations on the super rich guy that they wouldn’t do to another guy that’s similar to them in age/status, then I don’t even know what to say.