Because people seek leisure and ease and going against that means the competitor who recognizes this is going to beat you. Also on a more pedantic front, did you write your own operating system or create your own cpu? What does "learning the system" mean here? Its arbitrary. Even a hard code dev today would seem like a child to the guys in the 60s who had to do literally everything by hand.
>I don't think anybody here would argue that using a keyboard is too difficult.
Ever watch someone learn a keyboard for the first time? Its painful. The common layouts are questionable and lots of keys are extraneous. I dont need a sysrq or break key, thanks. Look at mobile. When I use a mobile device I either use voice or a swipe keyboard. When I'm at home I use my Google Home and Amazon Fire via voice instead of a hunt and peck virtual keyboard. Keyboards are actually fairly terrible, but right now for a lot of tasks are the least of the worst.
At some point informed people just throw up their hands and start making it harder for people to hurt themselves or others.
I don't understand the love for voluntary infantilism. Why is it such an impossibility to have to learn a system before using it? I don't think anybody here would argue that using a keyboard is too difficult. But couldn't we just back it with machine learning and let that algorithm figure out what we want to type when we just hit random keys?