Very good idea! Google abandoned these long ago.
I don't really get why so many Americans want RCS to succeed though. Do you guys not remember when carriers charged 10p/text? Why on earth would you want to give any power at all back to those people?
Americans have had unlimited texting plans for much longer than Europeans. I'm pretty sure most Americans had unlimited texts before Whatsapp existed, so there was never the move to it for economic reasons.
The main benefit of RCS is the fact it is available by default on other platforms like certified android and IOS. 3rd party messaging apps hit adoptability issues. A bundled, cross platform E2EE protocol is a huge step above SMS and MMS.
Many 3rd party platforms are still better though.
It's a bandaid over iMessage's dominance among iOS users.
The only benefit is sending higher DPI pictures between android and ios
After getting several family group chats finally converted over to RCS, one day my phone just started absolutely refusing to verify my connection to the RCS servers. Instead of any kind of notification, I was just silently not sending or receiving messages for nearly an entire day. I had to disable RCS on my phone, which created a several day long issue where some chats would just fall back to SMS and others absolutely refused to work, or strange interactions with Apple devices where certain messages would not be displayed. After enough trouble with it I convinced everyone to switch to a third party messaging app. I'll never turn RCS on again, I can't trust that it won't just start silently failing.