Completely relevant. Your story illustrates the utility of a phone with a camera, not a smartphone. I trust the study because the results match other studies I’m aware of and because these study confirm what I see in my work as a mental health professional. It’s what young people do with the smartphone that is harmful not something magically bad about the devices themselves. I see no benefit to a smartphone that can’t be achieved in a different way that doesn’t also have the risks that come with using a smartphone.
Cheers!