It's the NEW SMS. That is why it is so important, and that is why it works ONLY IF YOU HAVE A PHONE. Because that's literally the point.
Having your mom, grandpa, and everyone automatically use encrypted, modern comnunication just because they have a phone is extremely important.
Realise that in places where SMS has been historically free, SMS is the standard.
XMPP, Matrix or whatever will obviously still have its place for more "incognito" conversations. But having a phone number should also give you access to a better alternative than SMS.
RCS is not another chat app.
It's the NEW SMS. That is why it is so important, and that is why it works ONLY IF YOU HAVE A PHONE. Because that's literally the point.
Having your mom, grandpa, and everyone automatically use encrypted, modern comnunication just because they have a phone is extremely important.
Realise that in places where SMS has been historically free, SMS is the standard.
XMPP, Matrix or whatever will obviously still have its place for more "incognito" conversations. But having a phone number should also give you access to a better alternative than SMS.