Having a car becomes a distraction. A lot of people go out and do stuff throughout the week. Some even start touring crashpads in MEM. Break ins in the parking lot have happened in the past, and more than half of your class will have a car if you need rides to Wallyworld.
You can carpool to Beale Street on the weekends. Not having a car keeps you in your room studying during training. Unless, you came from another 121 carrier, you will need to study a lot more than you are used to.