When we moved into our last home, we had plenty of new friends to "play out" with. As they were a lot younger than me, after a few years they started to drift away and settle down in jobs and relationships. As it was, we were the only ones left in the end, and even though I had been in the area for 35 years, I still felt for the first time there that I didn't belong and it was time to move on.
So we have moved on, my ties to the past have gone and, as I have just said to my son, once he leaves, I have no-one who will have known me for any length of time in my life on a permanent basis. Part of this is good as I can start over but when I have no-one to chew the past over with, I feel a little sad.