This is one of the Continuing Professional Education courses I've completed this year. Although I've been retired from active CPA practice for quite some time, I've kept my license current. All Certified Public Accountants must complete Continuing Professional Education to renew their licenses - in my state, that's every three years.
So, this is what I've been doing all these years. It's just the principle of the thing.
Perhaps I'll officially retire when I'm 80....