Our children where born within a day off each other so close in age. but her ds can not leave my dd alone. he pushes her, hits her, kicks her, steals her toys. in space of an hour today she had cried 7 times because of him. and she is not a wimpy girl. in the end i said to friend ' come on thats the 5th time he has hit her are you not gonna tell him off' and she said ' if i did that i would be telling him off all the time'. that has really upset me as it makes me feel she thinks its ok for her ds to hit my dd. they are 2 1/2.