hi suelynn,
I personally feel that kids should not attend the ROM. Why? Because I saw my friend who ROM outside and during their vows, there are so many kids running around the table or making noise etc. This is not Solemn enough for the occasion.
However, I will have 3 kids (nephews and niece) who will be attending my ROM in sept. I will tell their mother (ie. my sisters, in my case, easy to talk to) to take care of their children. Anyway, by nature, these kids are quiet and behave themselve well. Therefore, I have no worry.
What I can suggest is that u talk nicely to your FH and let him see your concern and may b ask him to converse this small request, of keeping quiet during ur vows, to the relatives and friends.
Hope that this help.