I'm curious how that would play out over time. Since it would be male drivers who have no intention of harassing/assaulting female passengers that take this opt

I'm curious how that would play out over time. Since it would be male drivers who have no intention of harassing/assaulting female passengers that take this option, would you get a "Dead Sea" effect of proportionally more predators being left in the "accepts riders of any sex" group? Over time this could create an incredibly sex-segregated service.