Honestly , I think the USPS is going under.
They missed a $5B pension payment and are losing $42M @ day.
So who do they cut , the hub mail sorters.
Not the over bloated mgt staff.
UPS is still profitable .
However getting in can be a hassle.
Min age to drive is 21.
The internal policies can drive one insane, but if you want it then remember it will be a constant uphill battle.