Hi Curly,

all of my friends sent their kids to 3 yr old, and I thought the same as you, and that I must have made a terrible decision.
But once we got to 4 yr, DS was not the only one who hadn't been to 3yr old, and there was no problem.
There are heaps of things you can access online to keep them entertained etc.
The socialising has to be a huge part of it, but if you have so many activities going anyway, you shouldn't have a problem.
Even if you only had one day a week, he's interacting with other kids, it's bound to be better than none at all.