I had that problem when I was younger. I was a smart kid that would hang out with nice adults. Thing is when I'd meet a "normal" adult they'd automatically give me baby talk or brush me off. I learned that if you treat them with respect and show your intelligence and knowledge they'll eventually figure out how to deal with you properly. If not, feel sorry for them.
Also, I have met plenty of people of all ages that don't want to see my plants, carniverous or not. They don't care about my age or my plants, it's just not interesting to them.
And I am 5' tall, and look young so people still treat me like a kid sometimes! Everytime I get a childrens menu I order a beer! [img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img]