Seems like a good way to drive unregrettable attrition. The next question is, will this cause too many people to leave or stay? Tough to grok in advance how employees will respond, and how many people might take the chance the policy has no teeth.
I can't vouch for all the random Google results but for US tech voluntary attrition seemed to be somewhere around 15% per year pre pandemic. It went even higher during the 'great resignation'. Companies hiring strategies were based off 15% or 20% of people leaving by surprise. They had to hire accordingly
Now big employers are freezing or significantly slowing hiring down, some are afraid as new employees they'd be targeted in layoffs (or maybe their offers would be cancelled an hour before starting), so everyone ends up with more employees than they planned for
Source?