Fishing is a term related to fish. In other words, it is the art or the profession of catching fish.
The industry supplies a growing demand of fish as a basic nutrient through out the world, and in certain regions fish is the principal source of food.
Fishing is also a hobby, providing a recreational time for many fans of it.
It is quite common as it requires a low cost equipment combined by a great chance of success.
Fans of catching fish tend to show the world not only their success but also their commitment to the hobby. Many of them wear a matching tee shirt or a related hoodie stating their love for fishing.