It's not necessarily. If you saw the spousal event today, I would say I was quite surprised by how many were here from other parties, in fact.
I think it depends on your stage of life and how available you are to travel. If you have young kids at home.... I brought one child with me, so I have left two at home. But you know, it's not even children. I appreciated your saying that. It's elder parents as well. I know one spouse couldn't come because she's taking care of her parents. I think it depends on your stage of life and on your flexibility to be able to come to attend spousal events. Quite a number made the effort to come.
Then, even if you're local, you have more of a life here, and then it's hard to get the time away as well. It's not an easy answer, that way.