If the “caller’s son” was anything less than a very experienced driver, then IMHO he should not have been driving an SUV. SUVs are unstable during exactly the sort of maneuvers that young drivers make, sudden evasive swerves (which migh have been avoided by an experienced driver), entering off ramps too quickly, misjudging speed around curves, things of that sort.
SUVs serve a funtion, especially for towing, but they are inherantly unstable. If you’re driving one you need to leave plenty of room between you and everyone else, do everything that creates lateral forces (lane changes, curves, turns) more slowly than you would in a car, be more aware of reverse banked curves (they do this on purpose at roundabouts), and just generally look ahead and learn to predict. Also learn to brake BEFORE a turn rather than wait until you’re going onto it.