I don't know if I would say it's a "major social problem", more like a mild negative. Some teenagers primarily use Snapchat, Instagram, or Facebook Messenger. A

I don't know if I would say it's a "major social problem", more like a mild negative. Some teenagers primarily use Snapchat, Instagram, or Facebook Messenger. And outside of the US Whatsapp is very common. All these get around the chat bubble color issue.