you are right, a farm with animals ties you down. "Farmsitters" are an established feature in Germany. They are required to have a certain amount of training and are certified. If I remember correctly their salary is partially subsidized. The
dairy farm I lived next to employed one a couple of times.
In a homestead situation like ours we could not afford to pay someone a decent wage while we go on a trip. We considered the risk and need for insurance in having neighbors come by and
feed morning and night. So one of us has to stay home.