> It's none of their business what you want to do with your company

There are plenty of European member states that want the ability to control very precisely what you do with "your company". You want to call yourself "a software engineer"? Ooops...

In the EU it seems particularly the German-speaking countries are borderline obsessed with a) titles, and b) whom may use those titles. See, for instance, https://news.ycombinator.com/item?id=34096464