It's rude to me as well. But I think we are wrong about this.

I was in the doctor's office and a person was on the phone talking in the waiting room. I thought it was weird. But then I thought "if a person was sitting in the seat next to them and they were talking, would that be weird?"

I don't think we'd see two people talking as being weird. Why is it weird if someone is by themself speaking to someone that isn't around on the phone? If two people can speak in that place, it's not weird for someone to have a phone discussion.

Now playing music speakers or watching TikTok videos on your phone in a public place...psychotic!

It is rude and annoying in general. But even in quiet cars it seems like many people just don't give a fuck and will simply jabber on obnoxiously without any care for anyone else.

Would be nice if people could keep their noise levels down in general.

I think it depends not just on culture but also on the volume of the conversation. Some people manage to have a conversation when you can barely hear them; others seem to have a conversation with everyone on the train.

From my experience, (outside of the quiet car), "extremely rude" - only South Korea and Japan?

UK included.