It wasn't even clear how they were going to score it, or if it was said then I didn't see it.

I kinda guessed they would score it the way they did - the number of squares you traveled through, but at the same time I was half aware of doing what I would do in real life which is to minimize the number of direction changes, not distance traveled.

Yeah not realistic until:

* You need to pick up dog poo, dog toys, kids toys and clothes pegs

* You need to move the trampoline and mow that part and put it back.

* Some of the grass is so thick you need to whipersnap it first.