They make tire pressure gauges without touchscreens; even then, dashboards have indicators light up when pressure is too low. Garage door openers have buttons,

They make tire pressure gauges without touchscreens; even then, dashboards have indicators light up when pressure is too low. Garage door openers have buttons, and long-pressing often does magical things, like entering setup mode. And presumably, you have a calendar in a handheld device you carry with you everywhere; it's much more convenient then trying to carry a car in your pocket.