No, but the problem with pull ups is they are designed for kids this age, there are many kids this age in the them and they give little reason for the child to want to be out of them. A diaper will give more incentive for the child to step up and use the toilet so she can go back to panties.

The difference is, if the child has an underlying condition resulting in so many accidents then you'd want the pull ups so they aren't feeling different than the other kids their age due to their inability to train in the same time frame.