My oldest daughter is getting married later this month. I was half-way teasing her when I suggested she write on the RSVP card, "No brats allowed, regardless of age", which would include adults.

The problem is that the people that are the worst are the very ones that don't care. I admire the decorator that saved the day for that poor Bride, but I don't have any sympathy for the parents.
My husband, children and I are actually a very kind, patient, and gracious family, but we have seen our fair share of kids that ruined all kinds of events, or made everyone in a restaurant miserable, because the parents haven't taken the time to train their children. Kids are a direct reflection of their parents and their home life. We don't want to hear someone's child in battle with the mother all through the wedding video.
I am putting my daughter's interest first to make her day and memories special. I raised my kids to be very well behaved, so I know that it can be done.
We did put "No children under 6 years of age". We have hired a secret group of ladies to attend a nursery, just in case someone ignores our request. But, it will not be advertised. Any offending parents will be politely told when they register that their child will need to go to the nursery. If the parent tries to pick up the child between the ceremony and the reception, they will be politely told that they will need to leave the child in the nursery if they plan to attend the reception. It will be done in a pleasant, but firm manner.
So far we have not received a single complaint. I think it may be a relief for everyone, with and without kids. Our guests know us, and how we really love children, but also how we feel about their behavior. They have not been offended. It is my way to try to avoid stressful situations.
I have received a big thank you for this stand from people who do not have kids in that age group. They appreciate our courage to "take the bull by the horns". It will make the evening so much more enjoyable for everyone, including the parents. These parents may need a night out to enjoy themselves.
I will also be making both cakes. I plan to hire a "cake guard".

-Debbie B.
(An older mom that is determined to not let someone else's child, or adult for that matter, ruin my child's special day.)