This "increase with seniority" that's so common in the US makes no sense to me. (At my current job at the kindof-sortof-federal government, I get 12 days as a n

This "increase with seniority" that's so common in the US makes no sense to me. (At my current job at the kindof-sortof-federal government, I get 12 days as a new employee.) Do newly-hireds work less hard and need less time to relax? Plus, since the time to max out usually is quite long, it really penalizes people who switch jobs (which I guess is what you get when the vacation policies are set for the good of the employer as opposed to the employee).