Even among children, where the difference in experience is negligible, some people are able to analyze the input they receive from their eyes or ears in a way that others can’t. My friends who are artists amaze me by reducing a 3D object to a series of deformed polygons, or drawing a perfectly straight line with a pencil, and I amaze them by mimicking accents or memorizing song lyrics on one listen. For both of us, these are things that we’ve always been able to do.
I don’t propose that this barrier is insuperable, but there’s only so many hours in the day. There is also likely to be a hard limit on how good I can get compared to someone with natural ability. Spending 10 years going from 0/10 to 7/10 is a particular kind of commitment to make.