Skilled labor (such as mechanics) require training and apprenticeship pipelines. If those pipelines don’t exist or are starved of people it doesn’t matter how much you’re willing to pay right now. Long term sure you can make that career path more appealing but it can and often is absolutely the case that companies would pay out the nose for employees with particular skills and are unable to find anyone. But sure let’s go with the standard Reddit pablum, why give it more thought than that?