Ask HN: What job could you do that you can't get?

Is there a job which you would like to have, know you would be great at, but there is an arbitrary obstacle in the way of you obtaining that job, even though you could perform that job currently?

For example, some people are naturally great teachers, but to teach in certain areas requires a degree.

Or perhaps you have a friend with a better job than you have, but they come to you for help because you are good at whatever it is they do professionally.

If there is a qualification that you think is bogus but you notice it is regularly asked for, I'm interested in hearing about it.

If you have a story about how you overcame an obstacle in being hired while lacking a qualification, please share that too.