I can touch type and hit 'u' without looking, sure. But only if my hands start on the home row. This has no relevance for the situation under discussion. I cannot hit the 'u' key on a physical keyboard confidently and reliably without looking if it is mounted on the center console of a car and I am driving with my hands starting on the steering wheel. I always look to position my hand to hit those buttons. Meanwhile, the Tesla bottom bar buttons are far easier to hit than any key on my phone keyboard because they are much larger and mounted in a fixed position relative to me with a built in place to rest and align my hand. These situations are completely incomparable.