As someone who rides the bus: it's payment that causes slowdowns. Waiting for everyone to get on the front of the bus and tap often takes multiple traffic cycles. If we wanted to treat public transit as a true public good (as it ought to be), it should be funded from taxes and free at point of service, and then front and back can be used. But that'd be too much efficiency and cost the rich too much.

This article feels like he's picking the one lever he can when it's a bad lever. He created a new kind of ethical trolley problem by making it less accessible vs more efficient

There is a downside of making buses free, similar to the experience of cities which stopped enforcing "turnstile hopping" for trains, which is that it attracts a small number of hostile and malicious riders. An advantage of treating transit as a public good means this downside becomes an empirical question, not a moral one: Which approach leads to more ridership? In some cases, enforcing fares leads to more ridership by increasing safety and decreasing the amount of time spent cleaning up befouled surfaces.

That's the argument Mamdani makes to argue to make busses free. Taking the payment away would produce a lot more of reliability.

Over here in my European town this isn't an issue as we have a "trust based system" where tickets are only checked infrequently by spot inspections on the running bus and most people have a monthly pass. So it's just hop on and off.

One compromise is to tap inside; some systems do this.

There are a lot of other ways to speed up payment. they are better as well imho

That is an accepted issue among bus planners. One solution, I think used at least in part of NYC is to pay at the bus stop, before you board. Related is enforcing boarding and paying in front and leaving via the back door, so the leavers don't delay the boarders.