The average breaking distance for a car going 15 miles an hour about 45 feet, and that’s assuming The driver saw the object while they were at least 30 feet away. and that’s for small cars with new breaks A lot of people don’t understand the math behind their everyday life when you are driving a car typically at 25mph you are going actually going about 37feet per second or about 12 meters per second. The average pedestrian pops out about 40-50 feet ahead of u. So there’s not much most drivers can do when someone pops out of nowhere the driver can’t just stop their car. Physics just doesn’t work to make the driver accountable for pedestrians because the relative speed of each object to so vastly different. Cars going the same speeds have a better chance of missing each other because of that relative speed everyone is kind of on the same plane but with cars and bikes they’re not moving close to the same relative speed so when they pop out thinking they can make it. They’re are not accurately judging what it takes for that “giant death machine” to stop moving and how fast it’s actually coming at them on pedestrians account

I hope that makes more sense for you