Well they sure as shit don't use them when they're supposed to, but also, technology fails. When the camera dies and the operator decides it can wait to be fixed or they don't have the money to fix it because they already spend $1600 a month maintaining the vehicle , children will get run over and the driver will turn into that little shit from the old Chips Ahoy commercials all "heeheehee, oops!"

Can people in other vehicles see the cameras? Last time I checked, they're a huge visibility problem for everyone else, too. Can't see oncoming traffic lanes when it's in a left turn lane on opposite sides of an intersection. Can't see through them if they've pulled up too far on the left of somebody that wants to make a right turn. Etc etc.

they generally only turn on when the car is in reverse or if the parking sensor detected something already, and the parking sensors aren't that reliable if the driver pulls out too quickly...

Also depending on the car it can take a while to load the image and there can be a bit of delay from the processing where it stitched the images together for the 360 view...

Also it's not mandatory to have a front camera in most places yet as far as I know , so the base models or work truck models won't have it...