Then it's all the more important to avoid unnecessary employee turnover.

People tend to vastly underestimate how much the time needed for a new hire to come up to speed costs the employer.

This is true even of (theoretically simple) things like retail jobs, because even if you're proficient in the basic skill set on day one, coming up to speed on the rhythm of a specific workplace still takes time.

I'm buggered if I can remember where I saw it, but there was a study once that showed that (in that specific instance, I have no clue as to whether or not it generalises) a minimum wage increase actually *saved* retail/service employers in the area money overall, just because the reduced churn meant that over the lifetime of an employee with the company the fact that said lifetime was longer meant they were getting enough more value per hour out of each employee to more than compensate for the higher cost per hour.

Of course the study could always have been wrong, but it didn't seem obviously so back when I looked at it and it at the very least seems plausible to me.