If it's a big teaching hospital, then yes, it's probably standard protocol. Where I used to work, there was a sheet of pre-printed orders that came with every patient out of triage, and on it was 'pitocin per unit protocol.' Every patient got an IV, they all got pit, and there was about a 95% epidural rate. I had to actually FIGHT with a doctor once when I refused to start pitocin on a woman who was 8cms, having her 3rd baby on the grounds that SHE DIDN'T NEED IT. The doctor was just floored when lo and behold, SHE DELIVERED without the use of pitocin!!
NOW....that being said, there ARE some cases where pitocin IS actually 'needed' and nature WON'T take care of itself without KILLING the mother or baby first....prime example, pre-eclamptic on the verge of seizure. Pitocin has it's place, however, in large teaching hospitals they tend to give it out like water. It's just lack of education and experience on the part of the medical staff on the most basic level.
Where I practice now, pitocin is used much more judiciously, and pretty much given to women who either need to be induced for medical reasons or who have severely fallen off the labor curve and need a 'kick.' Yes, there are still those physicians who will induce anything they can get an amniohook into, but for the most part, where I practice now the docs and midwives are very much into letting nature take its' course and trusting that a woman's body will do what it needs to do IF YOU HAVE THE PATIENCE TO LET IT
Hope this has answered your question without my pounding too hard on my soapbox.