As children grow, they become better at turning experiences into stories they can tell themselves and others. Before those storytelling abilities develop, many experiences remain difficult to preserve in a way that adults can later access.
The YouGov research also suggests another factor many people overlook. Memories are not always built entirely from personal experience.
Among Americans who say they have a first memory, 26% believe it is at least somewhat likely that what they remember has been influenced by photographs, home videos, or stories told by family members over the years. Older Americans tended to express greater confidence that their earliest memories truly belonged to them rather than being reconstructed from outside sources.
That finding reflects what psychologists have long understood about memory.
Memory does not function like a video recording stored in the brain. Every time someone recalls an event, they reconstruct it, blending together fragments of sensory details, emotions, later experiences, and information learned afterward. Over time, those reconstructions can become so familiar that distinguishing lived experience from family storytelling becomes increasingly difficult.
The Childhood Moments Americans Are Most Likely to Remember

Although many details disappear, certain types of experiences seem to leave a lasting impression