FI and I's wedding in November will be my second, and his first, and we're not inviting children. We've having 90 people at the wedding and inviting kids would pretty much double the numbers, since pretty much everyone we're inviting has at least one kid (since we're in our 40s and so are most of our friends). Plus we don't want a bunch of kids running about being noisy and generally being annoying at the ceremony!
My mother tells me this is bad etiquette though, at a second wedding (perfectly acceptable at a first wedding though, apparently). Either way, we're not inviting children, I just want to know if my mother is right or not. (We're not writing 'no kids' or 'adults only' on anything, I know that is definitely a no-go, we;re just not inviting them).
Is not allowing children at a second wedding bad etiquette?