Curious...kids at weddings?

Laura
Before I start: I'm not at all calling anyone out or saying I disagree, but I'm curious why some people don't allow children at their wedding? I personally loved having all my little relatives at mine, but we also were only expecting about 10 tops and I knew there was a chance people wouldn't be able to come if we said no kids. A cousin of mine said no kids for her wedding, but then some of her bridal party had their kids and I was bummed that we weren't allowed to bring our daughter. I've just always wondered why some people choose to do adults only :)