Ability to change Global Chats without having to relog?

I'll tell you how it should look like...

In the global chat tab, a small button with the image of a globe can be seen. Tap on it and a pop-up will appear to let you choose which global chat you want to be in. There should be a number of global chats that you can see:

• <your country> (Default GC)
• English
• All Languages

<your country> = The global chat where you can only see those players that live in the same country as you. This is also the Default Global Chat. Which means when you log-in, this chat server will appear in your Global Chat tab.
English = The global chat where you will only see those that live in English-speaking countries.
All Languages = The global chat where you'll see everyone (in different countries) chat.

How'd you like it?

But why?

What is the point?