My 4 year old ds is in a small class of 25, today 20 of those classmates got a party invitation but my son and 4 others haven't due to "number restrictions" now to me it's mean to invite 80% of the class as it'll be the talk of the classroom and painfully obvious to 5 they're not included! I personally would have picked a venue I could get them all in or just picked girls or boys etc. AIBU to be upset?