> There seem to be legal problems with them in Germany or is it some European law and other countries are also blocked?
It is a stupid law in Germany. :(
https://productforums.google.com/forum/#!topic/youtube/qLbjw...
"Because of the German law (RStV), you must have a broadcast licence from the media authorities when you make a live stream that can reach more than 500 people at the same time. Not getting one would result in a fine of up to 500 000€. However, even if you would have one, Google might need one as well (because they somewhat are the "television channel") and they don't have one (if you do stuff that is against German law in your live stream, Google would lose its licence because of you)."