This. Also, most small children here have a tricycle or something similar once they're old enough to walk on their own. Sometimes the parent will carry or pull the tricycle, sometimes the child will use it if it does not want to walk.
It's a common complaint people give. "Well I can't see carrying 8 bags of groceries a few miles without my car"
But within 2000 feet of my apartment I have at least 4 or 5 grocery stores. The main reason they're so damn far apart in suburban America is that a 15,000 square foot grocery store might have 60,000 square feet of parking. US Suburbia basically _is_ parking and roads, with the occasional building sprinkled here and there on top of the skidpad.
If you've never lived outside of it, though, you're blind to it. It's like trying to explain why you'd want an umbrella to someone on Arrakeen.
I feel like there's more to it. When Americans visit me in Dublin they ask, before they get here, how I get by without a car. I don't think they really fathom that not only can it be done, it's actually easier when the city is well-designed. And Dublin's not even particularly great in that regard!
If you're walking two miles for normal errands your city is poorly designed.