You might be born taller or shorter than other people, but you have to develop skills from birth, just like everyone else. People who are better at certain things have just spent more time perfecting that specific craft, whether it be exercise, math, sports, or socializing. 

You have to put in the time and effort to be good at something. Although it’s much easier if you start at a younger age, it’s never impossible to learn and improve a set of skills.