I guess what I really wanted to communicate is this: If 100% of the companies decide it is not worth it to train employees because it's easier to hire already

I guess what I really wanted to communicate is this: If 100% of the companies decide it is not worth it to train employees because it's easier to hire already trained employees... there would be no trained employees to hire. So it's like a market force - as long as some companies are paying to train employees, other companies can take advantage and hire externally. But not all companies can do that.