Apropos of this, I was in Paris recently at a startup event, and was pleasantly shocked at the sheer number of startups and people I saw doing things. This is a good move by the French, and will help attract entrepreneurs away from other countries (particularly like those just across the channel currently inflicting generational economic damage on themselves.)
As someone from the UK, my main reason for not moving anywhere else in Europe is the language barrier. I'm not even sure I'm capable of learning another language; 5 years in school trying to learn French + German, and can still only put together about two sentences. From what I remember, no one else seemed to really pick up the languages either.
European countries have signs in local language plus English. And then there is France, where even in Paris or even international places like Disneyland Paris you find hardly signs in anything but French. General joe also doesn't or doesn't want to speak English with you, you better speak a little bit French if you visit Paris.