Me and my 3 siblings all left home in the late 90's at various ages from 18 to 20, some of us off to Uni, and others moved away with work. We were told we had to hand our house key (the key to our home) back to our parents and essentially we were on our own, not welcome back to live and only welcome back to stay if we gave at least a weeks notice.
Was this normal for that time? Or is this odd? I didn't really know any different so assumed it was what was done but now with my own adult children it has struck me as a really odd thing to do.