This probably sounds silly but as a newbie to preschool ways, I don't really know...
If it is "wear pyjamas" is it exactly that? With slippers and dressing gown? Or just regular clothes with jimjams on top? I did ask today but the lady said just get out of bed and come as he is. Which I took with a pinch of salt.
I know it's character building but I couldn't bear it for him to look like a wally - what do you recommend?