it’s their prerogative to try and get people to pay for the service.

Except that this attempt could easily be shown to largely land on folks with accessibility needs. That’s a big no-no under many laws.

An interesting comparison is pay-to-ride elevators. For most folks an elevator is a nice convenience they would not mind occasionally paying for.

But for some folks, the elevator is completely essential. This dynamic resulted in making pay-to-ride elevators illegal in most places, today.