It didn't even occur to me to put an RSVP date. I stupidly assumed that people would just check their diaries and get back to me
It's at a play center because we might be moving that weekend and I can't run a kid's party and removalists.
Just so long as enough kids show up to make it a party I'll be ok but if they're not coming I need to know so I can invite some cousins etc.

And Div, you can organise a kid's party for me for my 40th. I demand a jumpy castle lol.