If she is happy in her crib, why make her move? She will, soon enough want to sleep in a big girl bed, or grow out of her crib. My 2 1/2 year old loves her crib, and has no desire to sleep in anything else. She sleeps good and she is happy and it hurts NOTHING or NO ONE to keep her comfortable. Dont worry about what anyone else says, you are the one who lives with your daughter and she should decide when she wants to move into a big bed not you. People try to push their kids to be to the standards they want them to be at, and thats why most kids are on ritalin and are horrible out in public. Bad parenting is the biggest problem in this country, and the worst part is the parents are still too selfish to put their kids needs and wants before their own.
Let her be happy in her crib, she wants to be there dont push her or she will push back. If you want to see evidence of kids pushing back, go into a walmart and see the bad parents and the products of their bad parenting.