これさえ読めば安心! How to Turn off Capitalization on Iphoneの対策をロジカルに解説します。

What if you only want lowercase for, say, your journaling app or Twitter? Not every text thread needs to be a lowercase rave.

Some apps, like Notes or WhatsApp, let you customize keyboard behavior individually. But the global setting (the one we just flipped) applies everywhere.

Your only workaround? Turn auto-cap off completely, then manually capitalize when you need to. It sounds annoying, but after a day, your thumb gets used to it. It’s like learning to drive a stick shift.