Well....you left out a very important part of such... here:
"Never selling can be a damn good strategy if you start with a diversified bunch of quality stocks."
You can't do such at the latter stage of life. You must start young..or at the extreme....get very lucky at the latter stage of life. Every individual that dips his or her toes into the equity market has a different scenario with regards to their life situation. Your situation will not be an automatic play for another person's life situation. The only way to ever get ahead and stable is to maximize the utility available. That is the key.
Fine for those with income and/or fat portfolios already who can wait decades to realize gains. What about some who see gains as a way to pay monthly bills and OTC movers as the vehicle?
Never selling can be a damn good strategy if you start with a diversified bunch of quality stocks. Plus we'd have far less stock fraud if people stopped gambling on promoted hot stocks.