Saying "this is a better SMS app" got people on-board and let them "upgrade" to secure messaging. That's why I started using it in the "TextSecure" days.
But, sadly, I agree with Signal's reasoning here. Mixing the two protocols was annoyingly complex. If someone stopped using Signal, messages you sent to them would never arrive - with no notification. And there's no obvious way to "downgrade" to SMS.
I was working on RCS a decade ago. I'm glad to see it is finally getting somewhere - but I'm sad it is at the expense of better and more secure protocols.
I can imagine that's less of an issue in the US; do you pay extra for text messages and calls that go across state lines?
Almost all phone plans have unlimited (domestic) texting and calling and differentiate themselves with data, reliability and ”free” perks like subsidized Netflix. You really have to go out of your way to find a plan with limited texts/calls.
I don't understand why people on this board keep forgetting that central Europe and the US is the minority of the world population.
Everyone keeps bringing up WhatsApp. But it seems that everyone has all but forgotten that WhatsApp became so popular not because they only focused on the US market, but because they went around the globe and specifically targeted feature phones as well. I.e. they understood that their own home turf isn't enough to make a dominant chat application.
"It doesn't matter for the use cases I don't care about" - what a selfish look at the world.
Besides paying for parking by SMS and other services in Europe there's also M-Pesa and similar services[1]
Read before replying. I literally said "for person-to-person communication".