I don't buy, or allow them to buy, anything which I think is disrespectful towards women, the leaves out a lot of popular rap CDs their friends have and they don't. When I witness sexual harassment, for example, a group of boys making sexual remarks to a girl, I speak up and tell them to stop it. I think that's how a lot of changes happen in the world, not world leaders making a statement, but a million every day people doing things a little differently. That's my opinion. So, I just want to throw out a few last pieces of information.
Fathers are key in gender role development.
Boys who have a father in the home, especially one with whom they have a good relationship, show more appropriate masculinity. That is, they are appropriately assertive, but not too aggressive, etc. Girls who have a good relationship with their fathers tend to be more feminine. The exception to this is when the daughter is the oldest of all girls or an only child. In this case, fathers may transfer the attention and expectations they have for sons to their daughter.