@PrettyMaybug - I have been to child free weddings and ones with children there, and in my experience they were ALL lovely days! I don’t think it is fair or accurate to suggest that the only good/fun weddings are ones where children are allowed - nor do I think it is unreasonable for the bride and groom to have a child free wedding if that is their choice.
Dh and I were invited to his friend’s wedding, and despite his friend being ds2’s godfather, none of our dses were invited. They were very apologetic but their venue only held a certain amount of people, and if they’d invited everyone’s children, they would have had to leave out a lot of their adult friends - so the only children there were the little bridesmaids. It didn’t even occur to us to be insulted or offended at this - we found childcare, went along, and had a wonderful time celebrating their happy day.
We have also been to weddings with all our dses, including ones where we had toddlers and a newborn - and they were wonderful days too.
But the bottom line is that different people want and like different things - and that is absolutely OK. Everyone should have the wedding they want, even if - gasp - that means no children.
Oh, and not everyone on Mumsnet is a mum, or even a parent, and even those of us who are parents are not one single entity, filled with uncritical adoration of our children, or other people’s, 100% of the time - and that is damn well fine too!