Mazal, tthe issue of using your own hair as a wig is debatable. Then again, everything about covering your head/hair is…the only constant is that you have to cover your hair.
Ames, I debate with my Rabbi all the time to understand why/where/how and to make sure we are both clear on the question AND answer. You would be surprised how you can state a question one way and the other person understands it different than you meant. FTR, if he says “its just halacha, there isn’t an answer to why” that is good enough for me.