IIRC, it’s controlled by the carrier and not encrypted. If that’s the case, it’s bad. We’ve been moving away from carriers and internet providers, and got some privacy back by various means. Why would be roll that back?
Yes, that’s the right thing todo. My understanding was that Google went down this path and didn’t succeed, so went ahead with their own. Maybe have the other major mobile os onboard will be enough to get the carriers off their asses