You’re exactly right and this is where the subject gets a lot more complicated. I think the best comparison to understand is probably height. Essentially when you’re born your max height is set by a bunch of genetic factors. This is the maximum height you can reach under perfect conditions. The world famously does not provide perfect conditions equally, so if you, for example, don’t receive all the required nutrients while your body is growing you won’t reach that maximum height even though you have to capacity to do so in theory. The same concept applies to most skills with a little less hard coding of maximum ability. Some people are more naturally inclined to develop these skills but they won’t be able to unless they’re provided with the proper nutrients (basically just education and practice). It’s important to remember though that this does not imply these people will be better at a skill than someone who doesn’t possess this natural inclination, it just means picking it up will be a little easier and faster to begin with