User blog comment:NOBODY/Nitrome News: Aron Steed and the Plastic Plant/@comment-3286869-20150530232124/@comment-4628859-20150604005500

Yeah, that is how its used. In most manga I've seen in a school setting, female students, who are friends, refer to each other with -chan. Quite humorously, in one anime I watched subbed, one male character referred to another male with "-chan" and I kept thinking that was so weird till it turned out they had been childhood friends.