Thats not quite correct sam, there are plenty out there that did thier PPL in the min hours.
I did my night qual as part of my PPL in the 45 hours. Mind you the standard of the training I only learned later on while doing my FIC was pants.
And while working as an instructor I also did quite a few 45hour's PPL full time courses.
Its very dependent of where you did your training and the enviroment that you are in and also what the breaks between lessons were and of course ability.