It might be a factor, but I don't think that's the main reason. If you're an outdoorsy type, you have that immediate common ground with fellow campers, and have

It might be a factor, but I don't think that's the main reason. If you're an outdoorsy type, you have that immediate common ground with fellow campers, and have a whole host of starter questions pertaining to that interest that will usually kickstart an entire conversation. Same with the marina-goers: boats are an interest that you can start a convo with. Makes it easy.