I found this pretty irritating, to tell the truth, and thought-provoking. I didn't like the implication that this guy filling his life with his favourite activities was so that he could feel "young" and have an attractive body, I'm sure he does them because it gives him immense joy and fulfillment (of the soul!), and because all his friends are there. He had a job so he pays taxes, and as far as I'm concerned he is being as responsible an adult as anyone could ask for. Because isn't that what being an adult is about? Taking responsibility, for your own life, your own choices, and the people around you? Having kids magically forces a lot of people to grow up, myself included, but actively choosing to not have children is just as responsible an action. Being an adult should have something to do with accepting that you play a role in society and participating and giving something back, and taking the consequences of your actions and choices, but it shouldn't have anything to do with how you spend your free time.
I would agree all that is said. I think the news article was written wrongly with a certain slant that makes those without childcare, eldercare responsibilities etc. as "less" responsible.