Football? Segregated. Basketball? Segregated. Cricket, tennis, athletics, rugby - all, to greater or lesser extent, segregated by gender. Motorsport is not, although if the purpose of not doing so is to allow the very best to fight one another in a fair environment, then to all intents and purposes its upper echelons might as well be. It's almost impossible for a female racing driver to reach Formula 1.
Hence the launch of the female-only W Series last week, an agent of change enforcing positive action, to a predictably spectacular division of opinion. Proponents love the idea of driving change, critics hate the idea of unequal treatment and sending a bad message. The middle-ground probably considers the intention laudable but also thinks the execution and/or targets could be flawed.
It's tough to get to F1. It's tougher if a driver is female. Unlike other sports, motor racing is immensely expensive. So, the barrier of entry is higher - you either have a wealthy family, or a wealthy backer, whether that's a sponsor or a manufacturer or, very rarely, an independent young driver programme.