Ds was 4 on Friday and I booked a party at the wacky warehouse for him.
A few times I ummed and aaahed as to whether I should cancel it because ds is just not that interested really, but decided to let it go ahead.
On the morn of the party he kicked off saying he didn't want to go etc etc, then he came around a bit and off we went. I invited about 7 boys from his pre-school, some quite a bit younger than ds but it just affected me to see all these little boys interacting and chatting away together.
Ds legged it off, wasn't interested in saying hello or anything and pretty much played alone, hated the birthday cake part and the pass the parcel, he just didn't "get" that you pass it on and wasn't even slightly interested in winning anything, yet all the others were really eager.
To just finish me off, it broke my heart when the food came to see the girl working there going round all the kids asking their names, and they were all replying and chatting away...ds just blanked her like he always does when anyone talks to him.
So needless to say, it went ok but it really hits home when you see kids the same age and even younger.
My mum's friends grandson gave me a similar feeling, he is just 3 and I couldn't believe how well he talked and chatted away...just makes me feel 
Anyway rant over lol.