Are private schools better than state owned schools?

Many people have different points of view about what kind of education is better,  

Nowadays, in most developed countries there are thousands of schools or colleges to choose which can be private or public schools.

On the one hand,  state owned schools are free for everybody and they do not make exceptions with anyone. Besides, they help students to be in contact with all type of people and it will be the context which they will face in the future. Nonetheless, classes are too crowded.

On the other hand, private schools require a monthly payment which sometimes is very high. That is why students who study in private schools normally belong to families which have a high economic level. Nevertheless, private education is more personal, for example, students are allowed to choose other kind of subjects that they can consider "more practical". In addition, they are thought to put into practice what they learn, for example, by writing essays.

To sum up, education is an essential right for everyone, therefore, people should support a quality public education which prepares people for the near future. Moreover, state owned schools system should adapt to each student, and dedicate to them more personally.