And a big fat "adults only" at the bottom of the invitation

I know many of you may have had adult only weddings but this is the first time it was relevant/ personal to me and I feel so so sad. (I am breastfeeding, DD is 7 months...) I just wasn't expecting it I guess? He is 1 of 4 cousins I grew up with. It is about 10 hours away... so not like across town or something.

Someone make me feel better?