Do people have the freedom to choose between Parecon or market economy?

Since Participatory Economy opposes economic freedom, do people have the freedom to choose between participatory economy or market economy?

In college, I had an immature idea, which I’d call “market insurance theory”:

A reasonable planned economy should not use external forces such as legislative or administrative means to restrict individual voluntary economic behavior. On the contrary, the planned economy should rely on its ability to gradually make the market “useless” to prove its superiority to the market economy.

The planned economy, which simply cancels the market by external forces but still contains or even breeds a black market, is not a good planned economy. It goes without saying that this inferior planned economy still has shortcomings worth improving, and it is these shortcomings that constitute an environment for a black market. A planned economy that does not stop the market at all is better than a planned economy that suppresses the market administratively but has a black market.

This planned economy uses the market as a minimum (emergency) means, but this does not mean that the economy ultimately relies on the market economy to operate——
It’s like a person flying doesn’t want personal accident insurance to take effect (the market works), even if he or she has to buy insurance.
However, the fact that passengers buy insurance does not mean that passenger plane manufacturers are useless in improving the stability of the aircraft, let alone that passengers have to rely on insurance to survive.