[simcop2387]

> the primary reasons companies do unlimited PTO is that it's just not worth it to invest in official rules and some sort of tracking system.

One of the reasons that this can be so much of a problem is that a lot of states treat the PTO as essentially a liability to the company. It's something that needs to be paid out to an employee leaving (barring being fired for cause or other situations where it'd be forfeit). I've worked in a number of start-ups or early companies that ran with unlimited pto for this reason alone since it makes the balance sheets easier to deal with when reporting to investors because now there's not this extra lingering liability that can be difficult to deal with if things go awry.

The pressure to take less almost certainly is another benefit to those early companies but it's not the one that I've heard being primarily discussed for keeping the unlimited PTO like that.