Having workers move on always has a cost, generally called retention costs/turnover costs. The employer has to go through the hiring process again. The position

Having workers move on always has a cost, generally called retention costs/turnover costs. The employer has to go through the hiring process again. The position may remain unfilled until that's done, meaning your team is short on personnel. You have to train the new person, even a skilled hire needs to learn the particulars of your business. (That's one reason why employers look at how long you were at previous jobs, to avoid that turnover.) Depending on the position, the company could lose 1x to 1.5x the employee's yearly salary, sometimes more. And if you're trying to "hire them back if you offered them enough", that rather negates the point of trying to save money by eliminating soda, doesn't it?