Do you ask about other kids’ vaccination status?

Wondering if other progressive moms ask other parents they interact with if their kids are vaccinated? And if so, how they have gone about it?

Our close friends I already know all vaccinate their kids. But I have some neighbors we occasionally get together with, and I’m wondering if I should ask. One family I know leans pretty right (I’ve seen the husband in a trump shirt but never discussed with the wife), no clue about the others. But with measles spreading it’s making me kinda nervous and I really don’t want to inadvertently be around anti-vaxxers and risk putting us in danger. I asked my husband and he said it isn’t worth asking, and since ours are vaccinated they should be fine (but only one dose each, they are 2 and almost 4) but I’m not convinced. Curious what you all think.