My DD went last year at age 6 and loved it. I imagine that your younger two would have fun. I'm not sure about the 10 year old though. Just kind of depends on her personality. Is she at the age where it might be more cool to have a lunch date with mom during that time? If so, you & she could go to the restaurant at the GF (I think there's a CS there, but not positive) while the two younger ones are at the tea party?