I have a friend who got his MBA, a good job, and after one month left it to become a Surfboard Shaper. After 10 years, he still loves it. Today, I hate my job, and everyone here, so any of the jobs would be better.
Like this. Buy a few white and blue shirts to start. No one will even notice.
Five shirts should be enough to start. Get a good fit, buy on sale if possible, keep them clean and ironed, and you'll look fine.