1: His mother and Father were both Jedi masters.
That has little to do with your own connection power, and others are in the same position.
2: Because his parents were killed when he was born he started at the temple 3 days old.
Three years of age is when most Jedi start, around that time. Anakin was almost too old for training and he was very young himself.
3: A vortex of dark energy sent Leo to a forgotten plain where he had to embrace all the knowledge of the force he could at the age of 11.
Students have to embrace the knowledge of the force anyways.
You can keep him young, but you will need better reasons.