DS: Graduated, came home and did a Masters, then did a PhD, came home because he got a Post Doc. Got a flat, got married, relocated.
DD: Graduated, came home, did a teaching qualification, is now 26 and her BF is fully qualified and has a flat. She spends about 4 nights at his and 3 here.
DH and I both left home at 18 and never returned. Our homes were beyond London commutable and our careers were London centric.