If you want to advance and accept the responsibility there are numerous opportunities. Educational achievement is somewhat important yet the culture is similar to crabs in a bucket. So you will need to be cautious yet very professional.
Job Security, excellent salary with benefits
crabs in a bucket mentality and blocking for advancement
58+ miles on a rural route, over 300 stops, and you have to get it all done and get back to the Post Office by 3:00 PM. Saints forbid you have to deliver mail during a holiday season! Be ready to fail a LOT. Be ready to endure your supervisor breathing down your neck a LOT.