Well, yes....but this happened a few years ago for us.
We had 2 families....2 sons then 11 years later 2 daughters.
We were married 37 years before our nest emptied....that made me 57 and hubby was 60. So we have been there.
We planned when they were gone to really down-size...and went to a condo. We have enjoyed condo living ever since. We are now 77 and 80. Lots of good memories and some that are not so good, but we learn to take the bad along with the good!
June in Cincinnati