That's why we skipped K...
DS5 also likes to colour neatly and not go over the lines. I showed him one day how he can do a quick border and shade the inside quickly then of worksheets and he is almost as fast now as the scribbling kids. He also does a lot more colouring in for fun at home now as it is not so laborious.
Your poor little guy frown - DS would hate missing out on playtime too.