At some life stages and situations, this makes total sense. I’d think those are predominantly when one is embarking on a new stage, and moving as a part of that. Graduations, retirement, marriage, divorce, … . But someone moving involuntarily (job change, new posting, …), perhaps with a partner, perhaps with children … it’s hard to begrudge that person bringing many of their things along to ease the transition.

There’s a reason the US military pays for movers.