My advice is to just tell them what they want to hear and move on. While it's inappropriate for them to be asking such personal questions, some of these responses are just as inappropriate (in my opinion) for someone of your age in response to an adult. That type of disrespect would just get you into hot water.
You don't owe the folks at the KH a straight answer. Who really cares what they think? Make things easier on yourself and just deflect with something like "hopefully the end will come before I even have to worry about that".
Just my opinion.