I think it is ok. I felt guilty giving my 2 yr old son a doll and pram, but I know that it is not making him a sissy, it is making him a kind and considerate young boy, which in turn is going to make him a great dad!!! He has had a doll for about 9 months and he sits it with him at the table when he is having lunch, and asks me to please give his baby her lunch too! He makes sure baby doll has something to eat and drink, and it encourages him to sit and eat too. It has also helped me to toilet train him. When I bought him a potty ($2.99 at warehouse discount store) I bought one for his doll. I sat his doll on her potty and put water in it, when I took doll off and showed my son that dolly had done a wee and That I made a big deal out of how clever doll was, he wanted to sit on his potty, the very next time he sat on the potty he did a wee!!!
qld,3yr old boy