And there are many benefits to being interrupted.

Again, you cited removing friction as your reasoning.

Ya think maybe the problem perpetuates itself? You feel inconvenienced by an interruption so you avoid that interruption, thereby never learning to deal with it. Meanwhile, there are benefits you are willfully giving up, such as being able to be interrupted without getting upset or annoyed or the happiness of hearing someone's voice or the random stuff that comes up on phone calls.

Ya ever have a random tangent conversation with someone on the phone cuz someone heard something in the others voice? Or a phrase came up that sparked a different topic? Those moments are AWESOME and they only happen outside our comfort zones.

Easy isn't better.