Comment by pmontra

Your experience is more or less my experience. I even know a person that remembers from well before being 1 year old. That person started speaking very early, maybe that's related to having early memories. Different people develop at different times. The ages in the articles are averages of their respective populations so these data points are offset, for example, by the daughters of a friend of mine that told me that they don't remember anything before being 5 or 6 years old.