The amount of money a UI UX designer earns is directly proportional to their experience level. The more experienced a UI UX designer is, the more money they will earn. This is because experienced UI UX designers are able to create designs that are more user-friendly and effective than those of less experienced designers.
UI UX designers with a lot of experience can command higher salaries because they are in high demand. Companies are willing to pay more for experienced designers because they know that they will be able to create better designs that will lead to more sales.
However, it is important to note that experience is not the only factor that affects a UI UX designer's salary. The size of the company, the location, and the type of work are also important factors. For example, a UI UX designer working for a small company in a small town will not earn as much as a UI UX designer working for a large company in a big city.