It woudnt have been polite to awnser personal questions without the parents consent. Kim wanted North out of the public eye as much as possible. Khloe would have been going against Kim's wishes if she had awnsered. Not to much, reality shows like Keeping Up With the Kardashians(sorry if i spelled it wrong) is all scripted and the Kardashians do ALOT of acting. I woudnt consider it a "reality show".