I suspect, like most people, myself included, you are viewing your life the way you've been able to set it up based on financial circumstances.
If you didn't have enough money to afford a car, your life would be significantly different. You'd have adjusted your expectations to match. Of course you'd have enough time to walk/take the bus because you'd have no alternative. Your life wouldn't be set up such that 1/2 hour made a difference. That only happened because you have the financial wherewithal to have a car in the first place.
Poor people always have more time than money. Only after you have money do people say they have more money than time and go on to complain about spending money on things to provide time relief.
There was a good story on the news not long ago about a guy that walked something like 20 miles a day to TWO jobs he had (both minimum wage). He was doing what was necessary to make ends meet and lift himself up out of poverty. In the interview, not once did he say he NEEDED a car. It wasn't even on the radar for him. Good news was that his fellow employees were raising public awareness of this guy's determination in the face of the odds against him and some company donated him a car. The TV show donated something like $15k to help with expenses (gas, insurance, maintenance etc). I bet this lift accelerates his exit from financial straits but I suspect he had it in him anyway, just take a bit longer.
As mentioned poor people probably can't afford 10 bags of groceries in the first place and they do what it takes, like shopping more frequently so they can manage to get what they can afford home on the bus. Same for kids extracurricular equipment needs. If you're poor, you don't have money for those sports, let alone the required equipment...so you don't even need to worry about how to transport that stuff.
I think we invent NEEDS based on our situations, myself included. But they are not truly needs but wants that are achievable only because of financial wherewithal.
The poor guy takes the bus and needs 2.0 hours to commute. The middle class earner has a car and that takes 1.0 hour to commute. The rich guy has a helicopter and it takes 0.5 hour. I'm betting the rich guy says "I can't afford to sit in a car for an hour" It's all perspective and relative