<p>Use the phrase “substance abuse” carefully. Somewhere between having a glass of wine with dinner and being addicted to homemade desomorphine, there is a spectrum of danger. THC is among the least dangerous drugs in existence and underage drinking in moderation is also extremely benign, the only major problem being that children tend to be irresponsible – likely to binge and to get in trouble without being able to deal with the consequences. On the other hand, not having a driver’s license (or friends who would let an unlicensed driver drive a car) is a major plus.</p>