Why do girls "throw like girls"? Surprisingly it's not because of physical limitations or differences.
Readers who are happy with their throwing skills can prove this to themselves in about two seconds. If you are right-handed, pick up a ball with your left hand and throw it. Unless you are ambidextrous or have some other odd advantage, you will throw it "like a girl." The problem is not that your left shoulder is hinged strangely or that you don't know what a good throw looks like. It is that you have not spent time training your leg, hip, shoulder, and arm muscles on that side to work together as required for a throw. The actor John Goodman, who played football seriously and baseball casually when he was in high school, is right-handed. When cast in the 1992 movie The Babe, he had to learn to bat and throw left-handed, for realism in the role of Babe Ruth. For weeks before the filming began, he would arrive an hour early at the set of his TV show, Roseanne, so that he could practice throwing a tennis ball against a wall left-handed. "I made damn sure no one could see me," Goodman told me recently. "I'm hard enough on myself without the derisive laughter of my so-called friends." When The Babe was released, Goodman told a newspaper interviewer, "I'll never say something like 'He throws like a girl' again. It's not easy to learn how to throw." [More]This really good read should be mandatory for all fathers with daughters.
And men in general.