That’s fair. But even so, as long as you have brakes then you can always stop. As long as you have brakes and steering you can always stop fairly safely. I already said a sudden brake failure could be dangerous. I can’t think of any way you suddenly completely lose steering. There are plenty of failures that make steering way harder but I’ve seen a vehicle completely dragging a dead front tire sideways (hit a deer and broke something major, I was only a witness so I don’t know what) still have enough steering ability to safely pull over. I guess your steering wheel could fall off but I’ve never heard of that happening without someone tampering with it.