Shooting RAW isn't about idiot-proofing your photography, and doing it 'right' in camera will always get you a better picture (ok, 99% of the time), but just shooting JPEG will remove the option to make significant changes to WB, contrast curves, coluring, saturation and sharpness later on, which you may find improves some, none or all of your pictures, depending on your skill, luck and artistic whassname.
So, if you always carry a separate meter, grey card, graduated and CC filters, have shot tranny film all your life and have a sixth sense for a great picture that's about to happen, you'll probably never need to shoot RAW. Otherwise, I'd seriously consider it. You've nowt to loose except a few gigs of storage space.