As a reminder I would just like to say that this radar service for VFR is new as long as the Area Control Centers are concerned. Because when flight information service is provided by an approach, radar service was most of the time already available. Trouble is there wasn't any difference in the names of those organism (xxx Info), so it wasn't easy for pilots to understand who had radar and who had not . For example, I work in approach and we go up to FL175 and radar service including primary one has been available for quite a while !
The thing to know is that in ACCs FIS is not provided by "IFR " controllers, and that before this experimentation they had absolutely no right to use radar or even switch it on . When assistance was required by a pilot they would have to call for a "true" controller to come and talk to the pilot, and ... switch on the radar !
Sorry for the word "true", it's not meant to judge anybobody but that's the only word I could come with in this context. In fact there are two kind of controllers in France, in terms of status, the ones for ACCs and big airfields ( known as ICNAs) and the ones for smaller airfields and FIS in ACCs (TEEACs). The formation is different and shorter for the second kind , which meant that they had no right to use radar ( and the unions were very touchy on that point !) and their wages are lower.
The radar thing dates from a time when radar visualisation was something rare and expensive but it's slowly evolving now and the TEEACs start to get some radar screens on small fields. But at the time they're not fully qualified to use them... meaning that it's only for information and they should not use vectoring.
Another point is that there's a debate in France about the use of vectoring for VFR. There's no IMC rating in France as such, and "IMC rated" pilots are mostly only the commercial ones. So, the rules for the use of vectors for VFRs are not quite clear, the risk of course being the Vfr pilot going into the clouds. In fact the pilot has to request for vectoring and then the controller can only suggest a track.
One last thing. Somebody talked about this fake impression of security when in E airspace and in contact with FIS, the same is true as well for IFR traffics who might even be under radar vectors (it's not prohibited, only not recommended !). As a VFR you've got to be aware of the class of airspace you're flying in, but I very much doubt that the same is true for IFR.