The parenthesis was the key: talking about my specific case.
In Wallonia, the uni is pretty inefficient when it comes to Computer science. Few friends did the master degree and ended up learning things that are not relevant at all for their work.
I've been to a school former known as "INPRES", the master degree related to that is given by the same teachers to Industrial engineers. They told us right away: the lessons don't go further that what we learnt. So the sole reason why we would do that is having a master degree. However they are useful for the industrial engineers that started their studies in that specific school. Three years ago, they started a real master degree that goes further than my own studies, I checked it out and it looks really interesting! But being 35 y/o, living now 35m away from the city, having a house with a field to take care of, it looks unlikely that I'll do it someday.
Unfortunately, in Belgium, you won't get paid during your studies whatsoever. Maybe if I received money, I would have done more