People hate change. Whenever you introduce anything new, people work hard to avoid whatever is new, hoping it'll go away. This is especially true of new technology (which most people usually grow accustomed to and soon cannot live without it!) 

Before the pandemic hit in 2020, the labor shortage in U.S. factories was already problematic. They found it difficult to fill a large amount of open positions. For many manufacturers and distributors, production got pushed into high gear to handle the increased demand from consumers. Despite the high demand for factory workers, most of the people who had lost service jobs did not migrate to the open jobs on assembly lines.