My 2 boys have birthdays 8 days apart, so I've been thinking about hiring the local village hall and having a joint party for them, there would be no family (we live miles away) so it would be older sons friends from school, and younger sons from nursery.
I thought it would be great, we could hire a bouncy castle and a ball pit, have music and party food. We have one of those parachute things so could play games on that too. If the hall is big enough I would want 2 bouncy castles, one for big kids and one for the smalls.
But is it social suicide for my 10 year old? His 3 closest friends wouldn't think anything of it (one actively involved my toddler in their games) but I'm not sure about the wider social group. Is it completely uncool to have a joint party with completely different age groups?
We had one last year but that was in our hometown, with family and my friends and their kids of mixed ages.
YABU - totally uncool, FFS don't do that to him
YANBU - your 9/10yo wouldn't be bat an eye