1) If you had siblings of an opposite sex did you find that by going to separate highschools it had a detrimental effect on your relationship or did it enhance your relationship not being in each others pockets?

I have one sister, one brother. Going to the same school is the only reason my sister and I were at all close, we just didn't have anything else in common at all. Abilities, dispositions, stature, we are totally different people, although as we grow up we're becoming more like each other.
My brother and I only went to school together for three days of our lives (after I lived overseas I enrolled at this school, but it wasn't for me) It made absolutely no difference to our relationship. We were already close, and it just wasn't "cool" for us to hang out together, so we didn't, much as we both probably wanted to. He was in Year 7, I was in Year 11. We're still very close. He and my sister went to school together for 4 years, they're pretty close, but then they still were afterwards too. School didn't seem to change much.


2) Did you find that by separating the sexes it presented problems in the "outside/social" world... as in you felt more awkward around the opposite sex as you wern't used to interacting with them much as young adults?
Not for me. I went to a co-ed school in Years 5 and 6, then had the option to continue in co-ed, but opted to go single sex as I knew, even at that age, that boys just distracted me. So in high school, I chose to mostly hang out with boys outside school, because I knew that I enjoyed that social interaction, and then hung out with my girlfriends at school. I have always been comfortable with both.
Some of my friends though, are not so great with boys, because they weren't exposed to them outside of school, so never really developed that ability.

I think it's a good idea to make sure the kids still interact with the other sex outside of school, so that it's never weird.

3) Especially for the girls, being all girls was it a very "*****y" envrionment?
Still is! (hello to my stalker, BTW) There were times when we would completely exclude someone, or do some fairly nasty things, but after about Year 10, everyone pretty much got over that, and it was incredibly supportive. But, yeah, now that we're settling down, having kids, making life choices, we're passing judgement on each other for all of that, and while it's not outwardly b!tchy, I think there's an element that is still there. There were those who didn't buy into it though. Seems to depend on personality.