We have 3 grown kids.

We had one move out then come back for a year - but we still had another one at home at the time, so it was no big change. The biggest issue was that she brought her f***ing dog with her - we are not a dog family, my wife has cats, and f***ing Fido kept pissing on my carpets

Now - they're all out, and (figuratively speaking) the moment the last one left we had the locks changed

They aren't coming back, and they know it. But we're looking to downsize anyway and we plan to get a place that's big enough to accommodate visitors over Thanksgiving etc., but too small to move in.