Hardware controls might cost more to develop (do they?) but on the other side they don't get any modification during the life of a car. No need to spend money i

Hardware controls might cost more to develop (do they?) but on the other side they don't get any modification during the life of a car. No need to spend money in updates. Given the long history of those controls they are well understood by the car maker and by the car owners. All my cars have had basically the same controls for turn indicators, lights and wipers. The variations are minimal. I got two cars with cruise control and I had to read the manual once per car (better not to experiment at high speed.) I probably just poked with the levers to understand how to control the radio. However it took me four years to finally make my phone play audio over Bluetooth (calls were OK.) Everybody's else phone was fine. I finally found the right incantation of taps on the touch screen. Luckily very few functionalities must be accessed via the touchscreen, most notably adjusting the time and resetting the tire pressure sensors.