Been retired for 26 years now. I don't think I've changed greatly, in my outlook. I have changed greatly in what I can and cannot do anymore. I recall how active my 60's and early 70's were. Traveling, long walks, helped my son build his house and he lived 2 states away (although small ones). Now, in our mid 80's, my wife and I have slowed down. Surrounded by a loving family (our 8th great grandchild expected in a couple of weeks), we have all the help and socializing that we need on a day to day basis.
One difference from most folks that I've noted, while reading through various posts - -I've not made any new friends since retiring. Still have coffee with a couple of old ones but none new, and that's by choice. Maybe if the family wasn't nearby and/or my wife wasn't still by my side, I'd have a different outlook. I guess I'll never know.