Why the Apple II Didn't Support Lowercase Letters (2020)

I wish modern computers considered casing to be purely a matter of style, such that “S” == “s” evaluates to true.

Casing is rarely semantically important, so case sensitivity is widely ignored. But in many circumstances this gets implemented in a haphazard way. For example some sites consider foo@gmail.com and foo@GMAIL.COM to be different email addresses.

Also case sensitivity makes internationalisation awkward, particularly with German.

Sadly it’s too late to change this because doing so would be such a breaking change.