"Oh the horrors of it all...having to walk a whole 30 minutes!!"
They didn't say it in the story, but I would assume the trip back is the problem, depending on what you buy. Sorta hard to carry a week's groceries or all your Christmas presents that 30 minutes.
Problem Solved:
Twenty years ago, I was laid off of my job and I had no car. The nearest place I could shop for Christmas presents (or do any shopping at all) was almost exactly a 30 minute walk, one way.
I would lace up my Pumas and make a day of it, walking to the mall, shopping, and then walking back.
One day, as I walked home from doing my shopping, loaded down with Christmas presents, a smartalick teenager in a passing car screamed "BUM! Hobo! Get a job!" at me. At first, I was startled. Then, I chuckled. I must have looked like a hobo, walking beside the road carrying 4 shopping bags.