I mostly say it because SMS is so ancient. Not encrypted, messages are storied by the carrier and can be requested by the government

Yes, I understand all of that. I just refuse to ask anyone or be complicit in using a corporate-controlled chat platform. I’ll ask them to either use Signal or use my Matrix server.

Apparently it’s often marketed as a Tablet plan

Well I’ve never owned or used a tablet so I can’t comment on that but I don’t think people are putting them in their phones.