Messenger isn't all that popular outside of north america. Doesn't matter how much money transfer options you add to a program if nobody is using it. I do wonder what happens if any non WeChat thing starts going for banking type functionality (legal or not).
Messenger, WhatsApp and Instagram are all owened bu Facebook. Facebook is already working on merging them into a single app, to be rebranded in the near future.
WhatsApp and Instagram have huge popularity outside of North America
They are building a common protocol for messaging to be used interoperably, from what I have read. The apps themselves will likely remain separate from a user perspective, most likely
Ugh stop turning everything into an American lawyer singularity. I said FB Messenger isn't very popular outside of NA and it isn't. What more do you want from me.
There is north america, a few african countries, france and a few eastern European countries and australia. The rest is practically WhatsApp except for china which is WeChat.
