If you're a boy and you like teaching, you like nursing, you would like to have a doll, that's OK. We should each be free to develop our own talents, whatever they may be, and not be held back by artificial barriers.
Why is community a near-universal experience—especially for people of faith? One person put it this way: "Community is God's strategy for reaching the world." That's a neat way of saying that as community—rather than as individuals—we model what God has in mind for humanity.