Your entire comment is presumptuous and predicated on the assumption that playing for 14 hours a day inhibits those things, which is not necessarily true. Playing might be the symptom, not the cause.
If you simply force the gamer to quit, the underlying problems persist, and may continue to manifest themselves in similarly harmful/unconstructive/however-you-choose-to-describe-it behaviour such as a 100-hour-a-week TV habit.
A gaming habit is frequently (usually?) a symptom rather than the root cause of the problems, although poor life decisions can exacerbate depression making it hard to disentangle the two.
Btw, I hold a full time job and played over 8 hours of Prototype 2 yesterday(just to get the platinum trophy). On days I work I still end up playing 2-3 hours a day, I don't spend 5-6 hours playing games though because it would get in the way of my programming.