The more insecure your workers, the easier it is to get them to come in, regardless of what the supposed rules may or may not be.
Fast Fashion for example often employs workers in more or less sweatshop conditions close to the customers (this makes commercial sense, if you make the hot new items in Bangladesh you either need to expensively air freight them to customers or they're going to take weeks to arrive after they're first ordered - there's a reason it isn't called "Slow fashion"). These jobs are poorly paid, many workers have dubious right-to-work status, weak local language skills, may even be paid in cash - and so if you tell them they must come in, none of them are going to say "No".
In fact the slackening off in R for the area where my sister lives (today the towering chimneys and cavernous brick factories are just for tourists, your new dress was made in an anonymous single story building on an industrial estate) might be driven more by people not needing to own new frocks every week when they've been no further than their kitchen in a month than because it would actually be illegal to staff their business - if nobody's buying what you make then suddenly it makes sense to take a handout from the government and actually shut rather than pretend making mauve turtleneck sweaters or whatever is "essential".