As a cat owner, wet food by the ounce is hella expensive. Even if you got processed minute rice and wet beans in envelopes its cheaper.
For those actually curious how community run agriculture works in a socialist system, look up the Organopónicos of Cuba which was organized during the special time after the collapse of the Soviet Union. tldr: At the time the USSR collapsed, Cubas farms focused on supplying sugar for the whole Soviet Union and was unprepared when supplies ceased coming in. Cubans averaged a lost of about 10-15 pounds per citizen during the intermediary time while they reorganized into the community garden system Cuba has today.