My first class at my College, one of my Aviation Professors walked in said: "Look to your left and right. Two of you will NOT graduate!" I then turned to the guys on either side of me: "I feel sorry for you guys!" Out of the 30-40 students I started with, I was only 1 of 4 that graduated; was the last one to do so. The rest have been CFIs for a while, and 1 is working for Air Net, I'm the last one to be getting my CFI. It was rough for me financialy, but I was able to get through it. Most washed out because of the cost, others because they went to too many parties (lost their scholarship and parents refused to pay for any thing more) and for other lack of maturity reasons, for some it wasn't what they expected.