to expect parents to RSVP to a kids birthday party

[outnumbered2to1]

my DS1 will be 6 in April and because his birthday is during easter holidays i sent out his party (his first ever party for his school friends) invitations the middle of last week. So far only 10 people out of his class of 22 have bothered to reply either in person, via my mobile number or using the RSVP slip on the invitation.
I appreciate the party is during the easter holidays but AIBU to expect replies?

Thing is organising a party is stressful enough without having added worries about who is / is not coming and the embarassment of not having enough food / prizes / party bags etc

As a party venue owner, is there anything we could do to assist with this party invite/reply hell? Are you a parent who struggles to reply and can think of a way the venue owners could make it easier?

Yanbu but most people won't RSVP. Though if you invited DD I would :)

am in the same position, have my dd's party sat and have only received 5 out of 20 RSVP's