Earlier quoted context omitted.
> You only get 15-30 days of vacation per year. This is why I'm glad to have "unlimited" PTO (subject to manager approval + must be requested at least the duration in advance, e.g. 2 weeks notice for 2 weeks off), along with a few annual company-wide breaks and an earned month-long break every 3 years.
Unlimited PTO is often abused as way to prevent workers from feeling like they have the ability to take vacations when they need them.
- don't have to pay out employees who didn't take their vacation - nobody taking vacation to use expiring vacation days - employees take less vacation in general