Where did the money for travelers and photographers in blogs to go to so many countries come from?

1, the original salary is high or the family has money, and I travel to various countries in my spare time;

2. Participate in activities with sponsors;

3. Well-known photographers and the like need to fly all over the world, and the company or its own studio will make a profit;

4. Non-professional photographers, etc. Travel on business or business, photography and investigation in various countries;

5. remuneration. Write a book after traveling and sell the copyright of photos after photography to earn income;

6. If professional backpackers actually have a good travel plan, the cost is not as high as we thought.