[FennNaten]

Well, we already got examples with companies implementing the "take as much PTO as you like" benefit, the counterintuitive result is that employees tend to take as much or less days off than what they had before in fixed amount, without QoL improvements. The thing is, the fact that something is possible doesn't mean that people will feel comfortable doing it. Cultural norms, management style or habits aren't easy to change.

I live and work in France, where you legally have 5 weeks of PTO. The 5th week has been introduced 40 years ago. And yet, it's still hard for a lot of HR departments to make sure that employees properly take all of their PTO each year. Contrary to what seems to be popular belief, left unsupervised with goals to reach, it seems that most people tend to overwork themselves rather than laze off.