In practice though Tesla has buttons for the controls you need while driving.
Cruise control/lane keeping/cancel is a lever
Indicators, flash high beams is a lever
Park is a button
Windscreen wiper single wipe is a button, same button is window wash
Set speed is a scroll wheel, volume is a scroll wheel (and a touch control on the passenger side)
Navigation is on screen keyboard, but you should stop to change navigation, or have a passenger do it
Climate control heats or cools towards your target temperature, heated seats and steering wheel are automatic or touch screen, but you know you need them before you get in the car