Stone chips are part of life, and every car is at risk on public roads.
This link may be of interest in terms of stone chip protection.
Pistonheads stone chip protection discussion
Incidentally, stone chips on the front of the car arise from motorway journeys, where the car in front will be kicking up stones on the road heading for your car. The closer you drive to the car in front the more likely you are to get chips! Another solid reason not to tailgate. That wasn't aimed at you matey, just a general piece of background info.
Hmmm, if the stone chips are deep, I'd suggest a respray rather than the chipsaway kind of people.
HTH.