Dicksynormous,
I work in Marseille field and we don't have so much traffic and always have good weather...We (ATC) are not allowed to propose a visual approach to pilots, they have to ask for it......
standard approaches are made for bad weather conditions and I don't think it's nonsense to perform a visual approach in good conditions...it is sometimes more difficult for ATC because they don't know the kind of circuit the aircraft is going to perform, but , as I said before, you can have an idea of it (depends on the company :-) )