I had a PPL when I went to UPT in the AF. The only thing it got me was a UPT slot a little quicker after a graduated college. The AF is going to pay for those who dont have one before they go to UPT. When I did get to UPT it only helped me know how much I DIDNT know about flying. You will learn a lot and the military is going to make you learn it their way. They just want a little experience so you arent clueless when you show up.