As what @screenman says. Clubs have different groups for different abilities. You join the group that fits your speed and work your way up.I've been thinking about doing the same thing. As I get in better shape and build up my cycling strength, I'd like to ride with some other people. I've never done it and I'd like to learn how to ride in a group as I imagine there is a protocol and method to doing so. But I've also found that with my average speed of about 11 mph riding solo, I'm probably not up to keeping up with a group riding at 15 mph. So, I'm going to keep working on my solo rides and try and increase my average mph for each ride. That may not happen until the end of the summer but I'm ok with that. As long as it happens.