In high school (~35 years ago, when PCs weren't ubiquitous), I had started turning in typewritten homework because I was tired of getting my right answers marked wrong when the teacher couldn't read my writing.
Typing is more efficient than handwriting for me. I'm a fairly quick typist - maybe 60 WPM - but very slow at writing stuff down. I don't have to look at my fingers when I type words composed of the alphabet letters, but do have to look at the number keys because I never learned that in high school typing class.