Activity for sek8268

Is it wrong to tell people no children for the reception? If not, then where would this be put on the invitation? Also what if a couple children are flower girls and a ring bearer. Should they be invited to the reception? How would that be fair to...

My reception is going to be small, between 40-50 people. Just close family and friends. Is it nuts to cater your own wedding? I was thinking about doing Mexican food which doesn't involve a lot of cooking. Thoughts?