This is ridiculous. As someone who suffered greatly from bullying throughout their education, the only way to deal with bullying is punishing bullies.

Bullies will always find something to bully others for, thats why they are bullies and not just expressing a preference.

I’m fairly convinced the bullying problem is a result of a society who treat kids as their parent’s property instead of communal property. Parents enable bullying.

If apple made them all the same color I think bullying would change by around 0%

It turns green when the message is sent over SMS, not when you text a "non-Apple device".

You can send SMS messages to Apple devices, from an Apple device, if you're not signed into iMessage, or they're not, or if your data connectivity is limited, or theirs is.

This! I got sick of iMessage, and I disabled it completely on my iPhone. Everything was SMS, and it made moving my sim card between devices easier. I found that if you don't explicitly turn off iMessage before you ditch your iPhone, no other iMessage users will be able to message you. All my messages were green all the time.