Don't worry. People will pay for what works. Psychotherapy cannot be reduced to text messaging. If anything else, text messaging has increased the need for patients to have real life human interactions. We are social animals, our brains are designed to operate within a social context that is driven by voice modulation, facial expression, pupil dilation, scents, touch, proximity. Probably a few other variables that go into that.
How would this even work? I text the patient, "Do you have thoughts of suicide?" They text back, "Every f*n day" Hmmm. I wonder if I should hospitalize them. Are they serious or exaggerating for some reason? In the room, I have a few clues to rely on. Patient said it with certainty and emphasis or patient said it with a grin and a wink. Huge difference.