That's a really good idea I think. What's great about cycling (or running for example) is you can do it as a group but you can do it on your own just as well, unlike football or tennis for example. If you join a cycling club then there'll be people who share similar interests (well, cycling for example...) but you don't necessarily have to try hard to fit in. If you don't feel like communicating with other people much you don't have to do it, you can silently cycle and still be around other people. I guess there's just less pressure than in other sports.