Opinions such as the author’s are often mocked or attributed to an older, less tech-savy generation (see the “not a cell phone in sight, just people living in the moment” copypasta[0]). But I really think there’s something to this, as the author has found: having an internet-connected phone on you at all times makes it too easy to waste hours doing nothing in particular, instead of living your life. I’ve recently made it a personal policy to catch myself doing non-purposeful activity on my phone and put it away. And at least for me, my quality of life is better when my mind is not constantly abuzz with stimulation.
[0] https://knowyourmeme.com/memes/not-a-cell-phone-in-sight