Why would courthouses be designed with courtrooms to accommodate the public, and then two additional rooms for all the people (supporting victim or accused) that want to be accommodated but who, for whatever reason, don't want to sit in a courtroom? That doesn't make any sense to me. If there was that much extra space in the courthouse, I'm sure the prosecutor's offices would be bigger and each would have a room with a view.
I'm just guessing but I would think that in the case of a sexual assault( especially in the case of a child) allowances might be made. I don't know how a young victim would provide testimony, I believe there are alternatives. The courtroom may not be the best place for their family and so on ...