The conventional answer is that vehicles are getting bigger/higher off the ground/heavier in the US.
Some new pickup trucks are so big and have such a bad view of the road in front of them that you can't even see a normal sized car stopped in front out the windshield and they need to have a front camera. A lot of SUVs aren't quite there yet but they are getting ridiculously big/heavy and still high enough that it's hard to see children in front.
The height means that the bumper is positioned in a much worse way and rather than rolling on the windshield you'll just die if you're hit. The weight also increases the risk to pedestrians in a collision.
Also, some other countries are doing much more serious things to reduce pedestrian/cyclist deaths while the US is doing pretty much nothing.
Some new pickup trucks are so big and have such a bad view of the road in front of them that you can't even see a normal sized car stopped in front out the windshield and they need to have a front camera. A lot of SUVs aren't quite there yet but they are getting ridiculously big/heavy and still high enough that it's hard to see children in front.
The height means that the bumper is positioned in a much worse way and rather than rolling on the windshield you'll just die if you're hit. The weight also increases the risk to pedestrians in a collision.
Also, some other countries are doing much more serious things to reduce pedestrian/cyclist deaths while the US is doing pretty much nothing.