Because siblings are not allowed and I have no-one to look after DD2. Parents are required to accompany their children otherwise they cannot go. I'm still on maternity leave at the moment, so I can easily do this, but I have no childcare for DD2, and even if I did, it's a big ask for someone to look after her all day.
I can't think it's anything to do with adult:child ratios if parents are coming too. I suspect it's probably something to do with transportation/carseats, which is fair enough. I'm just sad because I think she'd enjoy spending a day somewhere fun with her friends, especially as some of them are leaving for school/school nursery this summer.
Would I be considered really odd if I offered to drive my DDs myself and join up with the main party? Is this a nusery no-no?