That's a correlation that may have nothing to do with causation. It's pretty clear that IFR pilots are generally better trained, regardless of whether they are flying IFR or VFR, and I think the pure number of VFR only pilots is higher. I don't remember the percentage, but there are quite a few IR rated pilots who die from VMC into IMC, so the rating itself doesn't always solve the problem. No, my point was that even with an instrument rating you are not legally allowed to fly into a cloud if you are not current, and it's fairly easy to fall out of currency if you don't fly IFR a lot. I do agree that flying on an IFR flight plan has a lot of advantages, but I still avoid ice and embedded thunderstorms at all costs, which sometimes means staying low and going VFR.