We'll have to learn.
over 80 % of the US population is in urban areas which means little or no access to land which can grow food.
This is much more important than the learning issue. The two enormous obstacles are
(1) housing design in urban America, most of which omit even balconies for gardens of any kind.
(2) the time period involved from beginning to harvestable yield. Many people can grow veggies, even indoors, but fruits, protein, and dairy sources will be out of reach for much of urban America as our cities are currently designed. It could become possible in future urban design, or in re-design, but it is not an instant solution for large portions of the population.