I believe the answer is Medial
If he gets it when he is younger there isn’t a chance of him getting it as he’s older so it wouldn’t effect anything as he aged
Being demisexual means you are on the asexual-scale. This doesn't mean you are asexual, however, it does mean that you usually only find sexual attraction when you are comfortable with the person. This means things such as one-night-stands wouldn't interest you. You can still be bi/pan/gay/straight if you are demisexual. Evan Edinger did a really good video a while ago on this as well. Here's the link. https://youtu.be/I41cBuTMhDo Hope this helps!!