Why is it auto-safety systems just can't handle objects in the road? That's all I personally need it for. I try not to drive in such as a way as to be vulnerabl

Why is it auto-safety systems just can't handle objects in the road? That's all I personally need it for. I try not to drive in such as a way as to be vulnerable to bad behavior from other cars but it'd sure be nice to not plow into nearly-invisible semi-truck tires laying in the road at night.