[jmt_]

Lifelong US citizen here - I've barely heard anyone mention it in person my whole life. If it wasn't for reading about it in discussions like this, I would probably never even think about it. iMessage, social media DMs, and regular SMS seem to be the most common in my experience. Signal/Telegram are pretty much only used here by tech people and/or people discussing not-so-wholesome things and I'm always surprised to see people on HN talk about moving their whole family to one of these apps or using them more casually in general.

[woutr_be]

> If it wasn't for reading about it in discussions like this, I would probably never even think about it.

I'm the same, but in the sense that I can't even begin to understand that people will marginalize each other based on the colors of their text messages, or that it would even matter at all. Having lived in Asia for the last ten years, having multiple chat apps is just so normal, most of my friends use WhatsApp, some use Messenger. Friends in China is WeChat, some friends from Japan and Thailand use Line.

[taylodl]

We're not talking about normal people, we're talking about teenagers. Adults see the green bubble and understand someone in the group is using Android and as a result their messages are insecure, and they generally don't care about that. If you're an adult and concerned about security in your chats then just use WhatsApp. You'll never get teenagers to adopt that approach though.