In general, the chances of you making someone sick or injured by developing software is very, very low indeed. An unclean barber can spread lice and other dise

In general, the chances of you making someone sick or injured by developing software is very, very low indeed. An unclean barber can spread lice and other diseases if they are unclean, not to mention that they are using sharp tools near someone's head ... or a razorblade on someone's face. Do you want to trust that you'll not catch diseases or other things from the barber or would you rather be able to have some sort of license? If you'd rather take the risk, so be it. I'd rather not.