Im not entirely sure if my parents know or not but I dont make any effort to hide it, Im 22 I got my own place a few years back so the opinion of my parents really doesn't matter to me any more, They can say what ever they want and I will tell them to get out of my house because I dont take s**t from them anymore, 20 years of being told your a failure and a disappointment and you will never be as successful as your sister really gets you down after a while so for all I care they can just keep on walking.