Odds of Hanging On
This is one career where you might be able to get a job without much relevant knowledge, but you're going to have to become a professional very quickly. You'll also have to keep up with the latest betting trends or else find yourself with skills that are no longer relevant.
Don't believe us? Ask older bookies you meet about how the internet came along and put them out of a job. Expect a fair amount of flying spittle, both intentional and otherwise.