alt Hacker NewsIn Europe it's done through EuroNCAP: https://etsc.eu/cars-will-need-buttons-not-just-touchscreens...
It has already started asking for physical buttons for key functions to give manufacturers the top safety rating, and it's working. Buttons are coming back.
Their source is "a Swedish motoring magazine in 2022". Europe sure does love regulation- no desire or call for finding the best way to implement vehicular controls, just a desire to lock in old functionality with a flimsy excuse.