We're not close. We talk to each other a couple times a year outside of birthdays. We get along perfectly fine and I enjoy when we do spend time together. We even lived together in college a couple years. But even then we really felt like roommates more than anything.

My neighborhood had a ton of kids. I hung out with the older group, but there was a ton of kids closer to his age (about 3-4 years younger, which is huge when you're in grade school) so he was with them. Today, I live about 1000 miles away. He has almost no motivation to travel. It feels weird to say when so many people (including my wife) are so close to their siblings, or have a good reason not to be, but we just kinda grew separately and that's totally ok.