So, why would you want to turn off uppercase letters on your iPhone in the first place? Well, for starters, it can make your texts look way more chill and less like you're trying to SCREAM at someone. Plus, it's just more polite, you know?
In all seriousness, though, it's really just about personal preference. Some people love the look of all caps, while others prefer to keep things a bit more low-key. And hey, being able to switch between the two is just plain cool!