Why is privatization not needed in a free market economy?

In a free market, privatisation is already happening.

Explanation:

Free market economies involves a system based on supply and demand law, where government doesn't participate (or a little).

With a free market economy, companies are private property, this means that government doesn't involve directly in the production of goods or services. Their job is make the rules to ensure equality between companies, in order to not benefit one above others.

Privatization in a free market economy is not needed as it already exists.

A free market economy is one with a robust private market.