Have you recently bought a car through text messaging? Lots of people do that now. They text four or five sales reps at different dealerships, they all run off to do work, then they come back with the best prices and you negotiate entirely through that channel.
Have you recently bought hair extensions through text messaging? Lots of people do that, and entire field sales force are managed and communicated to with text messaging.
Do you work with 25-35yo somethings? Guess how you're getting most of your work instructions these days. It's text messaging.
Have you seen the additional UI/UX changes? Do you know about how a big group of ex-Apple employees rolled off to spin up their own text messaging company that extends the purpose of SMS with additional functionalities that's now more and more common place in-app before we see it roll out to the first party channels.
Email is fax. Tech grows up. Keep up when you can.