I don't like to suburbs either but I'm currently visiting my brother who lives in one. Their socializing is kids basketball & soccer games at the park (which suburbs are zoned for), picnics at the local greenway (also zoned for), and swimming in the community pool. All of which are walking distance.
Not to mention, you know, inviting people over to their house because it isn't a tiny 400 square foot apartment. They make dinner for friends and watch football on the porch.