During the novel
uglies the main character Tally made a large
inductive leap. She assumed that all pretties are perfect and never
doubted that there was no reason to trust them. Tally made this leap
because she is very trusting and to a point still very innocent. Tally
never questioned anything she had been taught. In the end though it
turned out that when you received the operation to become pretty your
mind was also manipulated. When Tally learned about this she realized that she was almost to late.