Uppercase characters are usually more reliably unambiguous when writing by hand. With printed words, lowercase words are more legible because of the words' dis

Uppercase characters are usually more reliably unambiguous when writing by hand. With printed words, lowercase words are more legible because of the words' distinct shapes. It seems that uppercase is just carryover from hand printing. I work with technical drawings and labels are uppercase for no reason whatsoever, and it's fatiguing to read.