Supposed ability to move across Europe to do the same job, Yeah, well theoretically we can do that anyhow
No theorethically you can't, because there are countries (Italy, France, Belgium, Greece) where CC MUST hold a licence, and you cannot work there as a CC without getting it. I have worked in 2 countries where CC need a licence (and still hold it), and 1 where they don't (was the first for me, and wouldn't wish to go back). No need to tell you the ABYSS between the training for licence and a simple airline training.