Lot size isn't really the issue, it's having big swathes of land zoned all-residential or all-commercial. We live in a small college town with mostly half- to o

Lot size isn't really the issue, it's having big swathes of land zoned all-residential or all-commercial. We live in a small college town with mostly half- to one-acre lots outside of the downtown core, but we walk and bike everywhere most of the year because it's an actual town laid out before cars, with pockets of not-housing spread out among houses, and no wastelands of giant retail parking lots. I would really like to get more infill development and smaller lots, personally, but just for the sake of preserving open space. It's easy to walk and bike in actual cities and towns already. Suburbs are the issue, because they are entirely planned around cars.