Right, backup cameras make sense even for sedans and other small cars. The high-hood trucks and SUVs in the US are the reason we'll probably get mandatory front cameras eventually as well.
The front camera is the best thing I added to my 2004 Prius. The hood on that car is very good for visibility, but with the birds eye cameras I can roll it up within centimeters of things in front of me (there's a slight risk that you can absolutely poke the nose under stuff but at that point it's quite obvious out the windshield too).
It's a little ironic that the truck that diverged from the trend for high butch looking hood lines for no real reason is... Cybertruck. We kill pedestrians in the name of macho.