I am designing an RSVP, in which I give my guests the option of choosing their meal preference. I have a column for ticking the option of a kid's meal, then at the bottom I have a key for all of the meals.
My question is: If my key is talking about meals in general should it be written "kids' meal"? Then should the tick box be labelled "kid's meal", as it is one person indicating the meal for their one child?
If this is correct, is it strange to have it written differently on the same invitation? Is there a way I can write both of them the same way that would be correct?
I don't want to get this wrong as I am a teacher and I am inviting a whole load of teachers to my wedding! :)
Many thanks
(Hope I've explained this correctly - I've attached a picture for reference)

@Mari-LouA@EdwinAshworth - 1) A case of forcing square bread into round holes? 2) We also have the parallel forms men's wear and menswear. – Erik Kowal Feb 16 '15 at 03:12...and don't worry - I'm not feeding the children a square! It's just design work in progress :)
– lauhug Feb 16 '15 at 10:50