Certainly true. In this case it seems like since it's meant to be an "everyman" font it would be more useful to have it be in lowercase too, and include numeral

Certainly true. In this case it seems like since it's meant to be an "everyman" font it would be more useful to have it be in lowercase too, and include numerals etc. I'm guessing they decided writing 26 letters was about the limit of the average attention span online - having to do it twice, along with 0-9 and a basket full of symbols probably would result in lots of incomplete forms.