In the sprawling metropolis of Los Angeles, home to nearly 4 million people, making friends is no easy feat. Especially if you're an adult. Research shows that people over 21 are more likely to face extra hurdles in forming friendships. The building blocks — time, proximity and scheduled opportunities to socialize — are harder to come by when juggling all the responsibilities that come with building a life. But on a Saturday afternoon in late March, more than 200 adults are packed into the back... Read this story