I grew up with 2 brothers (no sisters). The only problem is that my son is not like my brothers. They were very sports oriented: football, baseball, hunting, fishing.
My son is a computer geek (much like his mother and father).
However, he needs that boy outlet, and I don't know how to give it to him.
He does love the outdoors (camping). Unfortunately, you can't let kids run wild like we did when we were little. We do try to go camping every year, and we go hiking around the parks at our home. My girls also love the outdoors.
I would like to get my son involved in something at school, and it is very hard to find something non-sports (and not too girly). He's only 9, so things will change. I'm trying to convince that he should be in the band, but he doesn't like that idea. We got him a digital camera last year, and he likes that. So I'm hoping when he's in middle school and high school he can do yearbook or the school newpaper. I just don't want a kid that is totally into computers and nothing else.
Maybe he could do something computer-oriented for a sports league or school team ... graphics for advertising, or scorekeeping, or statistical stuff? (My mother was a scorekeeper for Little League, back in pencil-and-paper days.) If he was doing something in the sports "area," and got to know the adults and children involved, he might want to play. Boys do need lots of exercise!