All that, in addition to having the need to shop for as much stuff as possible during a single trip. People will fill up their entire car at costco, but if you'

All that, in addition to having the need to shop for as much stuff as possible during a single trip. People will fill up their entire car at costco, but if you're walking or cycling, you don't typically have as much cargo carrying capacity. So a massive costco, walmart, or target trip doesn't always make sense. Splitting up the errands while walking or biking will result in either multiple trips to a big box store, or every time you leave the house, you knock off a few items on the list from the nearest store. The nearest store probably isn't a big box store since they have so much parking, so they aren't really around walkable areas as much.