Just need a bit of advice/feedback:
While we are not having an adults only reception (I have an 11 year old daughter as our junior bridesmaid, my nephews are ring bearers, and my godsons are invited, as well as several first cousins who are under 21), we are not inviting everyone to bring their kids. Especially family friends, distant relatives, etc.
We are doing online RSVP's via AppyCouple, so everybody's name is already in the system and you cannot substitute, add, etc. You can only RSVP and select meal options for the people we have put into the system.
However, my future FIL is concerned that some of his side might not get the subtlety of that and bring their kids. Is there a polite way to be more explicit on the RSVP or are word of mouth and personal convos enough/the best we can do? I'm a little worried that people will just show up with their kids and it will be an issue the day of... Especially because it isn't my family/friends by my in-laws that we're worried about this happening with...