I am not sure there is a "normal" when it comes to this. I tend to think it's very individualized.
For example, I remember lots of vivid details. Some of my siblings recall no details or information about their early years. Some of this may depend upon personality, etc.
Some argue that abused children do not recall info/details; yet, I recall them very well. I don't think any blanket statements about abuse and recall are accurate.

WC