Perhaps around 70% of these comments are bias, the only exceptions are from the people who have been in both. I have been in a same sex school since year 7, so maybe I just don't know better but there's really enough distractions as there is WITHOUT guys added to the classrooms.
While I can honestly say that most of my friends are girls, I can tell I will be okay after high school. My sister (who went to a co-ed school) went through all of high school focusing on her studies- she never had a boyfriend or even a guy friend until university. So just because I don't associate with the opposite sex as I would if I attended a co-ed school, it doesn't mean I'll be doomed to be a social misfit who hides at the sight of a guy.
And some people who have the idea that people who go to same sex schools are ALL like that (unable to deal with the opposite sex), then you haven't gone to a same sex school before. There are always opportunities outside of school to meet people, and I think that outside of school there should be no differences between the two types of schools.
I have no idea what that whole paragraph meant.
Anyway, its not like the only place you meet people is through school.