^PLEASE demonstrate the clinically significant distress and impairment that can be caused by nail biting. Examples would include failing out of school, losing jobs, destroying social and familial relationships.
As I've said over and over, so many of your arguments are taking pieces of the whole completely out of context to present it in a way that its not used or intended.
I think you should really give up and cede this point to me after I provided evidence against your claim that only 1% become addicted to video games, when it may be as high as 23%, higher than marijuana.
Nail biting is unhealthy for your nails. It makes them look ugly, can become painful, can even lead to infection or slight loss of functionality of your fingers. You are actually damaging your fingers by biting them too far back, but people keep biting them, sometimes tearing skin off as well.
However, did you say earlier that you cant base addiction on any 1 of those 7 attributes, that its a combination of any 3 and does not have to be any 1 in particular?.....Nail biting might not meet 3 separate criteria, but gaming and internet addiction certainly does.
Unless you exclude things like video game addiction over purely arbitrary social bias with no basis in science or objectivity....video game addictions can be costly and can cost you your eduction and lead to social isolation, keep people playing longer than they intended, even cause children to lie about their habits to cover them up.....this is addiction in the truest sense of the word, going solely by that 7 point criteria.....all you need is ANY 3, and its true addiction. Video games fit, and not just 1% like you claimed.
So, if you agree that video games can be "addictive", I agree that marijuana can be "addictive" in a small minority of people, but the attitude you described of people obsessing and basing their whole lives around marijuana....I really dont see it that much. I think I did in highschool, but I think that was a social addiction rather than a chemical addiction. It was part of their identity as a motivating factor, rather than a desperate need for the substance itself.
Its possible for people to dabble in meth or opium and not become addicted, but it takes real willpower and self discipline, or a lack of availability.
However, not only is it 'possible' to smoke weed without becoming addicted, but many people can smoke it as much as they want, whenever they want for years on end, and STILL never become addicted...They really CAN stop whenever they want, manage to show up sober for work or to a wedding, smoke on the weekends or when they get home....sure, you can have a habit of smoking in the AM, but very rarely do people freak out when they are out of weed.
Addiction isnt ALL about the substance though. Its about your relationship to the substance. Its something internal. I suppose you can psyche yourself up to have a phobia of sobriety if you smoke CONSTANTLY.....most people dont smoke constantly to the point where they dont experience moments of sobriety.....but I would still compare it to a psychological addiction, like video games, rather than fiendish or Moorish drugs that cause dependency.....You can never have enough coke if that is your DOC. When you have enough weed, you have had enough weed. Most people stop, unless they think they have something to prove.
In all my life I have never once had a "craving" for weed, like I have had a craving for nicotine or even caffeine. I have intellectually thought to myself that it might be nice to smoke a bowl, but I have never been crawling up the walls weeks later wishing I had some weed to smoke....and I have been smoking for 17 years, since I was 13.
The longer I have been smoking for, the less often I smoke....it didnt take any discipline, just a lack of interest.