K.U.
Is she showing any signs of actually being ready to train? Does she show interest in the potty and is she staying dry for a couple of hours at a time, or asking to have her diaper changed when it's wet or soiled? There are websites geared toward child development that list signs of potty training readiness and how to help with the process if they are showing them. If she really isn't showing signs of being ready, you might be better off waiting until she starts to, because otherwise it is going to be a long, drawn-out frustrating process. This isn't about the age they are, so much as when they are physically and emotionally ready to try.