There’s nothing wrong with grown kids staying at home for a few extra years, if they are being financially strategic and productive.
In our county, a starter home fixer-upper is nearly $200,000. It makes sense for young people to get through school debt-free and to save up a down payment. Why not use the parents’ house as a launch pad for that?
IF they are being financially strategic and productive....
...but they’re not. They just think that people of their genius, who obviously should be running the whole society, should not have to sully themselves and pollute their minds with actual work.