to ask parents acompanying children to DD's birthday party to Pay £3.50 if they wish to join child around farm?

[Jaynerae]

DD's is having Birthday part in a wonderful country park, with farm and play area.
We will of course pay for all children and we don't need parents to come for numbers as we have enough adults in family to help supervise.
But it is a fantastic place and parents can come if they wish to, venue charge £3.50 per adult,(normal entry when not part of party is £8.)

So do we pay for any parent who wishes to come, (some of the children will only just be 4 as DD is oldest in class)or do we ask them to pay for themselves?

What would you do?

Would you be offended to be asked to pay £3.50 to accompany your child to a farm and play park for the day?

I wouldn't mind paying. I did this when dd went to a birthday meal. I had to go cos of dd having sn. but I didn't think it was fair for the mum to have to pay for me.
but I also agree with drnorthener.

I had to pay £10.50 per parent who stayed at the aquarium party we were having, i was worried sick all 20 would stay as it was the dropped and ran to starbucks as fast as their legs could carry them, bloody cheeky of the venues IMO