https://fivethirtyeight.com/features/even-mega-farms-are-mos...
Most farms are "family" owned but perhaps OP was trying to communicate that nowadays farm owners are rarely farm workers?
A rather small proportion of farms are singly/family owned and have a majority of the work done by that family.
A rather small proportion of farms are singly/family owned and have a majority of the work done by that family.