If free, farm vacations were provided, the flood of barely useful arrivals would overwhelm your ability to get anything done. It would become a babysitting job for those who are already there. This would be like a giant
reverse fund raiser.
I've picked up hundreds of workers over the years. I'm in a relatively small city, but the distances, sometimes up to 5 miles, are an insurmountable hurdle for many of these guys who can't raise $2.25 for the bus. Those who require pick up, tend to be the same ones who require my constant supervision later. They are also the ones who forgot their hat, boots, lunch, cigarettes, dope ... and common sense. My best helpers are self mobile, self starters and self aware (safety).
Other than smoking and other drug usage, self mobility has been my number one indicator of whether someone is likely to be useful.