Why does the employer require more than 2 years of work experience?

In order to save costs, ordinary small companies directly recruit experienced people. Such people have work experience, and after a few years of hitting a wall, they know a little about the world. Only big companies or companies that prepare talents for themselves are willing to train fresh graduates. These companies are not afraid that you will run away after studying, and they can still keep you with treatment. Of course, such a company is not easy to enter. The main reason is that they are afraid that you will quit after training you.