I won’t argue with your lived experience but this would make you an extreme outlier.
About 20 years ago, every teenager in the world who had a mobile phone was able to select a contact from their phonebook and type an entire message and send, in class with their phone in their pocket.
This is possible because of physical buttons and a deterministic user interface.
The same applies to cars and other control interfaces.
As I said I have two cars from two manufacturers. They have wildly different button layouts. Your example is a teen ager with a "single phone". In my case I have to resist the urge to read the tiny text on the physical button to know what I need to do. I avoid spending enough time in my car to learn the physical layout.
It's important to read all the words in a comment before responding to it. Most families own more than one car, but usually each adult has their own, they don't switch regularly.
About 20 years ago, every teenager in the world who had a mobile phone was able to select a contact from their phonebook and type an entire message and send, in class with their phone in their pocket.
This is possible because of physical buttons and a deterministic user interface. The same applies to cars and other control interfaces.