It's a dire time for people who dropped out of school and with few marketable skills. The tattered net that was the McD's job, is not going to be there for long, not that should have ever been a job for proper adults, but soon it will be on its way out.
However, I think minimum wage increases are a red herring. Increased minimum wages should buy you better employees who are more productive. Never the less, it's just more automation, possibly base wage increase accelerates adoption, but it's not the reason --were just getting better at automation and it's becoming pervasive.
As to people's appetite for automated food production and presentation Japan should allay their fears. After a little trepidation, consumers will grow to like the predictable service.