Spinoff to invite question

OMG I totally forgot to include the 'no kids thing' in my invite but thanks goodness they aren't finalized or anything yet. Anyway, if you put adult reception where would you write it?? Also, I feel like I need to put an age limit because I swear some people are just niave and would think that they can't bring there 16 year old kid I only don't want the little kids there. Is it wierd if I put an age limit, and also where would I write that?? TIA!

i would just write 'adult reception to follow' at the bottom of the invitation ...

and on the RSVP cards, i'd write '3 seats are reserved for Mr & Mrs Smith and Junior' to specify that Junior is invited ... something like that, at least