Should education be free?

We know that education isn’t only for teachers and students. It’s an institution, a group of people who interact with each other every day to achieve the same goal: coach our new generation. Definitely, the quantity and quality of education that the students receive depends on a big part of the countries’ government. I can explain what is happening in Argentina.
When I was a kid (a lot of years ago 😊) almost all educational institutions were public, and only a small percentage was private. Children who had the possibility to go to private school sometimes were part of the “upper-society”. The educational level that students received in private institutions was no different than public school education. Nevertheless, the education distance between private and public schools have increased year after year. Nowadays, the government doesn't invest in education as they should. Is it useful to have free education with a substandard level or a standard to an exceptional level of education paying tuition every month? Obviously, everyone wants the best education for their children, however, the immediate question is whether common people can pay tuition or not. The answer is no. The private school tuition is really expensive, so only a small group of people can afford it. What is your opinion about this? Tell me about your experience in your country, city, state, or province. Bye!