[Sundae]

In many places around the world, the parental tie isn't actually cut until the parent dies.
It's still common for men to live with their parents after marriage even in this country if they are second generation immigrants. It makes financial sense, especially if they work in a family business. Free childcare, shared bills, communal cooking and the parents are looked after in old age.

Certainly my Grandparents still lived in Nanny Doyle's house after marriage, it was only WWII that got in the way. My Nanny always said it was a mixed blessing. Auntie Alice lived with her parents until they died, as was expected of a spinster. The War changed many expectations as councils built new houses in new places and suddendly families weren't on the next landing or down the hall. And freedom and privacy, once tasted, are hard to take back.