"No one wants" usually includes an insufficient wage, sometimes also an issue of insufficient investment in training for skilled folks. eg if you need a doctor in 12 years you have to start more or less today. A quick google suggests ~18% of their working age people do not have jobs, which naturally could be shifted by incentives like money or training. (Edit, because people are confused, I'm not talking about unempl…
1. There is only so much you can pay the people doing the kind of work like cleaning the Shinkansens or manning the 7-11's because it affects customer costs. i.e. There's a point where you increase the salary of 7-11 workers that it causes a $2 fried chicken snack to inflate to $10 that customers will refuse to buy 2. Even if there was magically enough money and time to retrain people, they would still be short of wo…
As evidenced by the non arrival of across the board 10% rises in meal costs when tipping is banned.
TL;DR cost and price linkage is not amenable to simplistic claims about the impact on pricing.