I think the issue was (back in the day) that many computer keyboards didn't have arrows _at all_. See for example the IBM Model F: https://commons.wikimedia.org

I think the issue was (back in the day) that many computer keyboards didn't have arrows _at all_. See for example the IBM Model F: https://commons.wikimedia.org/wiki/File:IBM_Model_F_XT.png https://commons.wikimedia.org/wiki/File:IBM_Model_F_XT.png If you search for "oldest computer keyboards" in your favorite image search utility, you'll notice that many keyboards there don't have arrows at all. I did not find any keyboards with the arrows on the left side, although it wouldn't surprise me.