The ability to remember childhood memories can vary significantly from person to person. It's not uncommon for individuals to have some difficulty recalling early memories, especially from very early childhood (before the age of 3 or 4). This phenomenon is known as childhood amnesia or infantile amnesia.
Childhood amnesia occurs because the brain undergoes significant development during early childhood, and memories formed during that time might not be stored in a way that can be easily accessed later in life. As a result, many people may not have clear or detailed memories of events that occurred during their early years.
It is challenging to provide an exact number of how many people can't remember their childhood memories, as it varies based on factors such as individual differences, cultural influences, and the type of memories being assessed. Some people may have very vivid and detailed memories of their early years, while others may have only a few fragmented recollections or none at all.
It's important to note that memory is a complex cognitive process, and various factors can influence our ability to recall past events. If someone is concerned about their memory or has significant difficulties remembering events from their childhood, they may want to consult with a healthcare professional or a memory specialist for further evaluation and guidance.