It varies for different people because the Echo evolves with you. I would personally advice an early start because our recollection of how things were in the ch

It varies for different people because the Echo evolves with you. I would personally advice an early start because our recollection of how things were in the childhood may start to blur as we mature. My own echo capture is still ongoing I feel like the longer you take to write into it, the better it can represent you. So I would say earlier is better