You asked "why", I gave a pointer.

I feel like your comment is a knee-jerk reaction to the text I quoted, rather than a response to an article which fully agrees that these are neither good nor reasonable arguments.

The headline text says "I'm a high school teacher, and my school banned cellphones in the classroom. Every school should do the same."

The author's direct response to those excuses is:

> However, if you're a teacher, administrator, parent, or just someone who cares about the experience of young people in your community, I urge you to think beyond these concerns — What if they complain? What if I can't reach them? What if it doesn't work? — and take a few moments to reread what my students wrote above.