We send many thousands of delivery notifications per day on SMS over Twilio. I've been wanting to use RCS for a long time (better group notification experiences, branded identification etc). Tried to do so last month: you pay a fee (I think $500) to enable RCS with a third-party only to find out that a small percentage of devices have it enabled making it effectively useless. So we switched to WhatsApp.
> only to find out that a small percentage of devices have it enabled making it effectively useless.
Which means a lot of people actively don't want it and have turned it off or not elected to turn it on when setting up a new phone. I got prompted to turn it on with my now S65 a while ago and said no (I just want basic works-everywhere simple SMS, thanks, for anything fancier I've got chat-app-de-jour. It got turned on anyway so I had to find the option and turn it back off.
