Who is “they”? If you offer pay of $100.00/hr to do welding you will getting 10,000 applications. If you offer $6.00/hr you will get zero applications. The trick is to find the price point between $6.00 and $100.00 per hour where you get the right kind of applicants with the right experience level. It is all supply and demand.
You might get 100 but of those 100 how many could actually do the work? Very very few. How many would stick with it. Nearly none. There are already plenty of welding jobs with few to do them. If you wind up paying a higher scale then the product price goes up. Either wages to buyers need to increase or the business no longer has a market. In short all wages need to adjust upward. Now youre right back wher you started...