I’ve always assumed skilled labor referred to like, electricians and plumbers. Tradesmen kind of positions, the stuff you have to apprentice for. So if you’re a really good plumber or whatever, you can demand a premium on top of whatever your trade normally allows. Whereas this dude could be the best box packer in all of the Amazon warehouses and should never expect a cent more than any of his coworkers, because the job only takes like a week to train for.