You didn't say that, as actually I'm not proud of anything related to nationality (it was a reference to the first post in the thread). What I meant is that in the particular case of the education system, the contribution system you mentioned allows socially deprived people to actually access the education system for free, as in beer.
So actually we're complementing each other: access to school is free for every one, but school isn't free for the citizen.
My point was to say that "free school" should not be mentioned, instead we should speak of "school paid by taxed citizens for everyone" which is more accurate.
Well, you've already understood: I'm french too ;)