Most adults cannot remember anything before their third birthday.
This condition is called childhood amnesia.
Some of you may remember a story related to infancy, but no one can tell for sure if it is really your surviving real memory or artificially created, for example, a photo frame or a parent"s story.
Childhood amnesia is natural - many people forget the memories of the first years of life. According to some scientists, little ones can remember, but the memories fall apart very quickly.
It is known that cognitive memory, consciousness develops from the age of 3 years, while at an earlier age the sensory-emotional experience is much more dominant.
Psychologists explain that in any case, for the proper growth and development of a small person, a cozy environment, family warmth and even taking a 2-year-old child to an entertainment center is necessary, even though he does not remember much of this event in adulthood.
"Sharing experiences is important. The child must feel the environment, explore! Babies learn the most in the early years, therefore, develop" - say scientists.
Source:
https://www.parents.com/kids/development/childhood-amnesia-heres-why-your-
child-cant-remember-being-a-baby/
