I think I'd feel ... tired, frustrated, taken for granted, and pretty blardy narked, to be honest.
For ds' sake too, I mean, you're obviously giving this your all, but it's not giving him an environment in which he can mingle with larger numbers of children.
When would he be entitled to commence school? Is it obligatory to have had some kg before school, will he be the only one not to, or do many parents opt out of it?