In my opinion, and I would hope most agree, in America we do not have a free market.
For instance, I have been to Mexico three times. In even the larger/nice cities the streets are filled with street vendors selling food and goods. At night you can get some pretty damn good food cooked by people living in the area that simply set up an area and start cooking. You can judge for yourself if the food is clean/cooking area is clean because it is cooked right in front of you.
In the mornings, many people do not fix breakfast at home. They simply walk outside and throughout neighborhoods there are fresh fruit vendors and people selling some mean Huevos rancheros or breakfast tacos etc. As well as different people selling items they make at home.
Try to do that in your neighborhood.
Throughout the world this is a common practice and way for many people to earn xtra cash.
There are many other examples such as this.
In America markets are protected. The governments invents looong lists of regulations and requirements that greatly increase the cost of startups - and completely kills the chance of a person doing something just to earn extra money all to protect corporate interest and markets.
You're right of course. I do have no problem whatsoever with the government regulating aspects of the food supply, most especially in prohibiting known toxins and requiring labeling of foods transported across borders and state lines so that the people will have information they could not practically get for themselves. But that is where government involvement should end. People are smart enough to know the risks of buying from all manner of vendors and a free people can choose whether or not to assume those risks.