Depends on the child. Some can start as early as 18 months some dont start untill after 2 years old. Google potty traing and look at the sights put up by Drs, they are all pretty much the same and have a list of "signs" that your child is ready. Its more about being physically and emotionally ready than it is about age.
at 6:03 PM on May. 28, 2009