First of all, let’s try to avoid American-bashing, and stay respectful to everyone.
I’ll start: for me it’s the tipping culture. Especially nowadays, with the recent post on !mildlyinfuriating@lemmy.world with the 40% tip, it just seems so weird to me to have to pay extra just so that menu prices can stay low.
Suburban buses where I live work that way too, but that’s only faster as long as no one needs to get on or off, and buses driving around empty is horrible for the environment.