I can imagine licensing being a terrible PIA for programmers. If you work only in c# at work and learn some new language during your free-time, getting a licens

I can imagine licensing being a terrible PIA for programmers. If you work only in c# at work and learn some new language during your free-time, getting a license for the new language could be so time-consuming and not worth it (studying the obscurities of the language and actually taking a test). That is if there is a new license for every language and job type.