I don't know if that is the point though. I don't think Bedford or Nerurkar are talking about the likes of you or me - I don't mean this disrespectfully - I just mean that I think they are talking about the athletes who probably could choose to be great or not.
In regard to your second point you don't need to be ill to spend a year on Job Seekers allowance and you don't need to try all that hard to seek a job. Besides that there must be a million young people on "gap" years.