How is it an environmental waste to only put 1k miles on my car every year?
Because it's a new car, with all the associated materials and pollution to produce it, then barely using it. If putting such light wear on a vehicle, it's more responsible to get a used one. A greater demand in the used market, also keeps more vehicles out of landfills.
Less than 5 minutes walk I can take my dog to the vet, buy a diamond, get all kinds of food, visit the hardware store, go to the park or hop on a subway
Except then you have to settle for that particular vet, the particular diamonds/jewelry/staff and pricing, similar lower selection of and higher cost of food, and I can't recall the last time I went to the hardware store and only bought enough weight or bulk that I'd want to (try to) carry it home. Same goes for groceries.
Plus, it is very unusual to have all these things within a 5 minute walk. Take grocery stores for example, the ones with good selection/size, have a similarly large parking lot and it would take me more than 5 minutes to walk back and forth to one, even if I lived right next door to it, in the closest residential zone.
Where I live, a park is a place where there is only nature, not so much hearing city noise, city pollution, and seeing a lot of buildings. Your park is not what I'd call a park, just some grass/trees/shrubs. My back yard is probably closer to a park than that, from which I see horses, squirrels, rabbits, deer, coyotes, foxes, hawks, vultures, geese and of course the more common birds, etc. and not a distracting level of human population.
The reason most areas aren't laid out like yours (except out of necessity in larger cities) is because the automobile made it so that people didn't
have to live like that.
My home is 100 years old, structurally sound, and the interior is completely redone with modern appliances, granite countertops, sheet rock, 10gbe, with modern wiring circuit breakers and line conditioners.
... and I'm certain that you carried all that home during your walk from the hardware store... or... maybe vehicles are pretty important in your life too, and you're just moving the burden to someone else to use them.