The Sport of Entrepreneurship
There's a certain advantage to treating entrepreneurship as a professional sport. If you put yourself in the shoes of an elite athlete, you'll notice how the journey is quite similar.
Building a business by yourself would be akin to tennis or any single-player sport, versus building a startup with others would be like a team sport.
Both would require hours of practice and focused effort to learn how to play and grow as an elite athlete, but the sport of entrepreneurship has some huge advantages.
Physical sports have a certain time limit to them. An aging body makes it less likely for you to become a professional athlete the older you get. You can practice more intensely as you age and improve your diet and lifestyle, but your body might not agree with this. If you decide to become a pro athlete later in life (even in your late 20s or 30s), the odds are less in your favor for most sports. You will also have to deal with injuries regardless of your age.
In entrepreneurship, the opposite is true. The more you learn, grow, and age, the wiser you become. Age is a huge advantage. You also don't need to be naturally athletic or have the right frame; you can divide the sport into its representative skills (product, marketing, sales, branding, etc.) and treat each area as something you need to practice and improve in. You can start at any age, and your proficiency will continue to grow over time as you put in the work.