Cafe standards.
So Americans?
a lower hood will strike somewhere lower on the body like the legs, and bounce them off the hood (absorbing some impact)
a higher hood will strike somewhere closer to the head and torso, causing substantially more damage, and cause you to go under and get crushed by the wheels, so at a minimum level damage is much more severe.
and this is for adults. they're basically death sentences for shorter people and children.
Not this kind of higher. The EU stuff was about lifting the hood's sheet metal off the engine block so that there is more of a crumple zone instead of pedestrian's head kissing engine block