I believe my country (Canada) mandates this.

However, I've had employers that simply paid out your vacation pay on every paycheque, it was a pittance of like $30 if that....

So they never "accumulated" any vacation time for workers and couldn't give any fewer shits if you took your vacation or not. They would only give a shit if you took too much time off for vacation.

Beyond that, you're on your own.

I never took vacation.