You don't even have to have kids. When I was at my last house, I didn't have kids, and people would knock on my door every day. It was because my block was fu

You don't even have to have kids. When I was at my last house, I didn't have kids, and people would knock on my door every day. It was because my block was full of neighbors who were friendly and nice to one another, and not shut in their houses like hermits. The way many people in the suburbs live these days, they'd might as well live in windowless metal shipping containers.