DS1 is 3.6 yo, pretty normal for his age - lots of chatting, making up games, unreasonable moments, eats and sleeps well. He's happy at Pre-school, has friends, interacts well and staff say no problems at all.
But I'm a bit worried about one area - he can't draw at all, not a line, circle, anything. He struggles to hold a pencil properly and then gets cross and just scribbles.... It seems most of his peers are way ahead of him with this, sone writing their own name, drawing people etc. He does like doing craft things so sticking, paper maiche and he's good with his hands in other ways - building train tracks, Lego and blocks.
Do you think this is something to worry about? If so what do you think the cause could be or likely action needed?