It's my personal opinion and we've had this discussion on DRL's before, but ours aint switched on, they aint getting switched on and to be honest, I don't ever have any difficulties seeing other road users. If it gets gloomy, the sidelights go on. When it's no longer gloomy, they go off. Simples!
The problem with new Fiat's is giving people the option to switch them on or off. If ours came with them permanently on, I would just suck back and live with it, but because I absolutely hate DRL's with a passion (sorry all! ) and we have been given the option to switch them off, then they're off.
If one really has difficulties seeing traffic coming towards thee, then one should perhaps visit the optician. I do so every two years without fail. Ensuring one's eyes are in good health is left up to the individual. Let's bring in compulsory eye testing for all motorists at least once every five years. That in itself might actually prevent a few accidents.
There, rant over.
Sorry, but they're parking lights, not sidelights. The key to their useage is in the name.