What do you mean by motorcycle culture exactly? Each type of motorcycle has it's own kind of culture surrounding it and they don't always intermingle. Sport bike riders and cruiser riders couldn't be more different. Dirt bike riders are completely different than street riders. Some people ride strictly for transportation. Some people are way into rebuilding old bikes. Some people like bar hopping, going to meetups and group rides. Some guys like riding solo. Just like pretty much everything if you really dig down into motorcycles you'll find it's much more nuanced than you think. If you're looking for a hobby it's as good as any.