Subsistence farming sucks for grains and similiar things that can be efficiently machinized.
For many fruits and vegetables farming still relies on a lot of manual labor, often done by immigrants and vulnerable people under terrible working conditions.
My parents grow most of their fruits and veggies for half a year on about 40 m2 which is a tenth of an acre.
So with very little land it is possible to replace a lot of your grocery bag with self grown produce.
Subsistence farming sucks for grains and similiar things that can be efficiently machinized.
For many fruits and vegetables farming still relies on a lot of manual labor, often done by immigrants and vulnerable people under terrible working conditions.
My parents grow most of their fruits and veggies for half a year on about 40 m2 which is a tenth of an acre.
So with very little land it is possible to replace a lot of your grocery bag with self grown produce.