Almost nobody can remember anything from before the age of two or three
Most adults' earliest memories date from around age three and a half, with almost nothing retrievable from infancy — a gap Sigmund Freud named 'infantile amnesia' in 1905. The leading modern explanation isn't repression but biology: the hippocampus and the language-based systems needed to store autobiographical memories are still immature in early childhood, so the memories were likely never durably encoded in the first place.