My parents nor neither set of my grandparents had hobbies, and they did just fine. Tbh, a lot of people who have all these hobbies, especially the rich, be getting hurt or even killed doing them. I'm not talking about drawing, bird watching, playing pool, etc. I'm talking about hobbies like hunting, scuba diving, fishing, camping, skiing, hiking in risky areas, mountain climbing, etc... I've heard stories of people who had these physical type hobbies for years, and still got messed up. Just watch the news. A lot of these things happen to celebrities. But you don't hear about these mishaps when they happen to the average joe. Anyway, be a millionaire, then blow it all by accidentally getting shot at during a hunting trip, chased by a bear during a camping trip, visited by a shark while scuba diving, falling while horseback riding, etc... Then a lot of people who have hobbies, don't necessarily mean they're happy, nor do the hobbies make them happy. Plus a lot of people out grow hobbies. As they get older, they get more satisfaction just watching green trees, hearing the birds, and enjoying the rest of this beautiful nature that they took for granted in their younger years.
Of course there's nothing wrong with having hobbies, but never depend on them. One bad car accident, or just your body getting older, could end that hobby, especially if it's a more physical hobby.