If you are not looking both ways when you are crossing a street, even in a parking lot, you are irresponsible. You shouldn’t be surprised by a big, predictably there object.
Here's an example.
https://www.google.co.uk/maps/@51.900949,-2.0723105,3a,75y,3...
You'll see of these four roads meeting at a crossroad only one of them has a crossing. Pedestrians have absolute right of way on zebra crossings. The car driver is committing an offence if the fail to stop for a pedestrian on a zebra crossing. Many drivers don't know this and they don't stop or slow down, which is why the sounds are needed - to stop visually impaired people stepping in front of a car that has no chance of stopping in time.
Notice that two of the other roads have dropped curbs and textured paving. Rule 172 of the Highway Code mean that pedestrians also have priority on those roads, but this isn't well known. Someone stepping off the curb there in front of a moving vehicle is at risk of harm, even though they have priority.
What should a person standing on the near right corner wishing to cross to the far right corner do? Just use that crossing that's there? Or cross to the near left, then use zebra crossing, then cross to far right corner?