To get to the local post office in my town, you can take the sidewalk or cut across a lawn using a well-worn path. This year, the town added flagstones to that shortcut to save the lawn. Quicker and faster always trumps planning.
Humans are an odd lot. We make decisions based on how we are raised and what hurt us or saved us from pain. We always choose what is easy, what we were taught or what we think is right. And that tendency has a lot to do with safety. When humans finally recognize, and admit, how often we make poor decisions, we will prevent construction accidents and kill fewer souls.