I just took my 83 year old father to Australia in Feb/Mar of this year. I did whatever it took to get us together in C or F. But we sat together. It took six months to get the seats, but we sat together. The thought of one of us in one class and the other in another class was not even a consideration. The time together was much more important than where we sat. We did end up in First on saver awards, but I did everything by the rules of UA. And did I mention, "WE SAT TOGETHER".