My dad was a great programmer... who typed with a terrible two finger peck technique. It was infuriating to watch as a kid.

Typing was not a core skill. He had secretaries for that. A lot of the early typing he did was on a keypunch when an operator wasn't available; "proper" early mechanical keypunch technique was index fingers only because of the high forces involved.

My memories of the early 80's have a lot of "computer people" -- both older mainframe types like my dad, and younger people -- typing like that.