What a goofy comment.
Pedestrians are *also* subject to right-of-way rules, just like everyone else on the road. Many examples of people running between parked/stopped cars and getting smoked when they hit an open lane with a vehicle they did not expect to be there.
Not the driver's fault.
UK law says if you hit someone, it's your fault.
If you're going fast enough in an area where someone could step out, and someone does step out, if you hit them then you were clearly going too fast.