Le_Lisra said:
Yes, the issue the OP had isn't very hard, but it is part of something that pisses me off too, which is even more strongly present in what others posted as well.
There are always (and why is that?) somewhere parents who go out of their way to be annoying with silly (!) and trivial stuff that should not be a problem at all.
My mother has a tendency to practically plug her ears and try and drown out your voice when she feels she's losing an argument. How am I supposed to respect that as a valid argument? You're right, there wouldn't be an issue if there were some sort of mutual respect, but when someone uses their age and says it automatically makes them intellectually superior, they're just being childish and ineffectual. This usually means to me that the person in question is incapable of supporting their own opinion with fact or reason.
Also, there's something wrong, and somewhat depressing, when you spend, what is, basically, half of your life trying to understand each and every nuance of the English language due to the fact that one might be tired of being intellectually body-checked by their father. Not necessarily just this, as it's made me a better conversationalist, but when you do this only to find that your opinions are still null and void because you are still legally a child, it pretty much kills any respect one may once have had for the other person involved.
In my opinion, one cannot demand respect if he isn't willing to be worth respecting, or if they aren't willing to reciprocate respect where it has been deserved. I know people that refuse to listen to an intelligent, effective business partner of theirs, who is damn good at his job, simply because the man is still in his 20's.