My son will be 4 in August and will be the youngest in his class when he starts school. On and off over the last couple of months I have tried to help him to hold a pen and write his name. He really struggles and I certainly don't push it, but he doesn't seem to be getting anywhere. Is it normal/ok for a child not to be able to do this when they start school? My older son had no trouble and could write his name well before starting school.