Telling people they should completely abstain from something when you know they won't (be it alcohol, sex, or credit cards) is just plain stupid. Telling them how to use it responsibly is always much better.
Not using a credit card costs you a ton when you go to get a mortgage. Building a solid credit history is well worth it.
Telling an alcoholic to completely abstain from alcohol is stupid?
Clearly he's going to need more help than just telling him to quit, but pretending that he can moderate his consumption of alcohol when he is biologically incapable of doing so is a betrayal.
Well, with chemical dependencies it's a bit different, but this guy's advice isn't for people hooked on snorting credit cards, it's for everyone. Preaching to kids that they should never drink though is a waste. Teaching them to make sure they aren't driving afterward and don't find themselves doing it too often or too heavily is much more effective.
Not using a credit card costs you a ton when you go to get a mortgage. Building a solid credit history is well worth it.