Well it really depends
Before lateralization happens, the mind of a child is basically on creativity steroids 24/7
On top of that, they tend to treat the paper like its own little universe, which actually improves composition
The problem usually occurs around 12-13, when people first start looking at their art critically, comparing it to others instead of just doing it to do it, lose that sense of wonder of making marks with the pencil, become obsessed with "realism", and stop treating the paper like it's own little universe, which hurts composition
When the child develops their first sense of self-efficacy, and drawing becomes a "skill" that is attached to their ego and can thus be compared as "better" or "worse", it's rare that they continue on to actually pursue it any longer
For those who can push through that and recapture that childlike addiction to making the pencil move to make a little dimensional window on the paper, and channel that energy into a drive to master the technical aspects, they can improve for the rest of their lives
Unless you neglect taking in enough Vitamin A and go half-blind in your 40's. Seriously guys, take your fucking vitamins.