The only social custom I can export from Ethiopia is having people over for tea or coffee. Then again, how many Americans find it worthwhile to come to someone's home for coffee or tea when they could meet at Starbucks and consume five gallons of Mocha Frappucino together and not have to clean up any mess? How many Americans want to pack up the kids, drive across town, just for a few hours. In addition, visiting in America is always a planned event, rarely spontaneous. Children complicate visiting further, as they too are on such rigid schedules, and can turn a calm visit into a frenzied one (Ethiopian children are not at all like American children are today).
In short, "Living more like this" requires a community who is willing to "live a little more like this". Part of the problem is that many of our cities are designed around the car. This leads us to a tremendous amount of isolation, lack of a sense of place, and an easy mobility that makes long-lasting friendship difficult. Consider this image. I found it under the search "Pedestrian Friendly". If it is so friendly where are all the pedestrians? (the logic of a simpleton I know.) But this is how America defines a space that is friendly to pedestrians. Europeans and Ethiopians have spaces like this which lend themselves to more community and friendship: