My fiance and I are working on finalizing our guest list. For context, this will be a wedding that most people will have to travel by plane to attend. The issue that I'm struggling with is the final number fluctuates A TON on whether we allow children to attend. We are having a more formal wedding and I really don't want kids there, not to mention that every additional person adds to the expense. Where do you draw the line as to who qualifies as "a kid"? I have a few cousins are in the 11-13 year old range who I barely know, but of course I would like their parents (my aunts and uncles) to attend. Would love to hear everyone's thoughts and how you've handled this situation.