I have no problem with him playing with dolls as he is enjoying himself and would go out and buy him a 'boy doll' to use if he wants one, thou my family members, mainly the older generation i might add, keep taking it off him and give him an action man or football to play with instead.

My brothers young boy does something similar, though not dolls, he wants toy ironing boards and vacuum cleaners, he likes to copy his mum when doing the housework. I dont think theres anything wrong with it at all, playing with dolls is something you grow out of regardless of wether your male or female. I say let the boy enjoy his playtime