Currently organising my 2nd ever kids party for my nearly 5 year old (first one was for his 4th birthday last year). So many of the parents have just not bothered to rsvp at all. Is this normal with kids parties? I found the same thing happened last year and I don't have the phone numbers of the mums to chase so will just assume they can't make it. I find it so rude and I will always rsvp to say that I can't make it as I just think it's polite but maybe people get so many this is just the way it's done? I find it very annoying.