I have to go with interrupting.
Nowadays younger people equate texting with talking and fret if someone doesn't respond within the next 2 minutes or so. If I text someone and they don't respond I don't worry about it unless it is something important but if that is the case I would call.
This one hits home with me. I drive alot for work, so txts don't get checked very often. So I always miss the important stuff, like one kid picking on the other or I need a ride to so & so's house. I can take calls while driving and they know that, so if they choose to txt TS. some day they'll figure it out.