I think you will find that the hop industry, like many other agricultural processes, was mechanised many years ago. The traditional hand picking done by families from London and treated as a holiday are long gone. As are the stilt walkers who used to string the lines for the hops to climb. They have even changed the varieties grown and now only grow the strains that are conducive to mechanical harvesting and tending. This all began in the 50s when Brexit was only a dream and the labour, when there was a lot required, never was supplied by foreign gangs ... and still the story telling and false cant concerning gaining our rightful freedom and independance, and once again learning to think for ourselves goes on. Some never will be able to think for themselves though.