Anything you enjoy can become "pathologically addicting". When you do something you enjoy, the happy chemicals in your brain get released, the very same chemicals released through the use, of say, heroin. If we are to villify video games for being addicting, then we must also villify every recreational activity known to, at some point in history, with at least one person, be enjoyed. I'll admit I get very addicted to turn based strategy games. I go crazy if I don't get "my fix". But anyone who passionately enjoys anything also can have the potential to get addicted to their activity of choice. Some peoples' brains are just more easily addicted than others.

I have flat feet and must wear prescription orthotics. Given that it is impossible to wear the foot orthotics without shoes on, I do not have the option to run barefoot. For those with flat feet or other foot abnormalities, running regularly without the aid of foot orthotics can not only mean pain in the feet, knees, and back, but also permanent damage in the feet, knees, and back.