I chose "I don't care"
Like the author, when I learned to type it was what they taught. Like him I'll go on doing it because it's in my muscle memory. If you get hot under collar about it (and I've seen some amazingly angry rants on the subject, worse than Comic Sans) I'll tell you to worry about something that matters.
I won't tell you to get a sense of proportion, because Trin Tragula.