Why would it be distressing? People in their 20s living at home shouldn’t be distressing imo. COL, rents, etc. are high here in NJ. Even in places where COL isn’t as high, why move out if you have the same freedom without the cost?
I love that my kids live at home but I barely see them given their work, etc. schedules. I lived with my parents until I got married.
Maybe it's generational. A different way of viewing life expectations, according to how you were raised, and in what era.
I was born into a hard working blue collar family in the early fifties. Kids of my generation (and socio-economic circumstance) were expected to leave the nest between 18 and 20, whether we went to college or not. It was simply expected by our elders that we go out into the world and begin our own lives - just as they had done.
Where I came from, every kid did so, with few exceptions.