Why did women serve in noncombat positions in the military and work in factories at home

Because while men where fighting the war they didnt want factories shutting down so women worked the man's job, and the reason women served in noncombat positions in the military was so they cold have as many soldiers fighting as they could without loosing nurses and and cooks

So there families don't have to worry about getting killed or more about that woman dying plus she is a female