This is how a lot of the world used to work (ok, minus the wi-fi, and the accomodation was even more basic). Unskilled laborers and anyone else out of a job would move around, taking jobs as and when they were needed and often living "on site" for a while. Much of the work was seasonal such as harvesting, although some places like dockyards and coal mines you could turn up and work by the day or week most of the year. No such thing as benefits if you fell ill, of course.

Here's an article about hops pickers in England [1] and the related Wikipedia article [2]. I also recommend Steinbeck's "The Grapes of Wrath".

[1] https://mashable.com/2017/06/03/hop-pickers [2] https://en.wikipedia.org/wiki/Hopper_hut