It’s not just inexperience, very few of the drivers in these southern states are likely to have winter tires, which are vastly better on snow and ice compared to the typical all season tires.
had 5 inches on my hood today. my road (zero traffic today) already melting (below freezing but the ground isn’t frozen) and that is going to very possibly be a lovely sheet of ice overnight.
i can drive ~ok in this, but black ice is a non-starter and even if not, the person behind me may have zero idea what they are doing. bad risk/reward.