It seems to me like this would also be illegal. You are giving one gender an option you aren't giving the other gender. And you are making it so one gender has more potential customers than the other, which is effectively giving them more money.

But whether the law is enforced is a whole other question.

> You are giving one gender an option you aren't giving the other gender.

A simple solution then is to make the feature a `custom request for the same sex driver/passenger`. Then males can request males and females can request females. Or they (driver/passenger) can simply use it as

The more of this kind of natural discrimination we make illegal the less meaningful public markets will be and the more people will choose to:

1) Just not socialize

2) Do things under the table.

Let people pay the premium for what they want. Sometimes there are good reasons for it. Stop pretending to have an apodictic understanding of both the world and morality.

It's not blatant - "a driver not threatening to women" is not a job both genders can do. It's very easy to delineate. We have hundreds of jobs like that already that are quite mundane and legal, like worker at Victoria's Secret.

> "a driver not threatening to women" is not a job both genders can do.

Imagine if I were to make an analogous claim with races rather than genders. You wouldn't even care whether there were any kind of statistical basis for the claim (I am explicitly not claiming any statistical basis for any claim of that form). You would immediately and correctly deem the claim to be racist.

Feeling threatened by the mere existence of another person, on the basis of that person's sex, race or anything else is not generally considered a rational or socially acceptable response. It's the sort of thing that results either from past life trauma or from explicit bigotry.