Let's see. While I've been told I'm very mature and wise for my age (21) and that I understand people very well in a social sense, I still have social awkwardness quirks that nerds/gamers/other such people are accused of having. A lot of it stems from growing up with an autistic brother, parents that divorced at a young age, and being overly protected, sheltered, and pampered by my Mom. It didn't help that, because the California school system is incredibly broken, I was being looked at for autism because my brother was autistic. There is a possible genetic link, yes, but even at that age, I understood what autism was and knew they had a high suspicion that I was. It was very damaging of them to consider me the way they did and when I was about to leave for college I found some old elementary school teacher and psychologist notes. To put it simply, some of the notes are very assuming and, actually, frightening. So many kids are damaged by the school system through such means. I was lucky that I was never put in a program that would have stunted my development. At one point, they wanted to put me on ADHD medication and my Mom, being a doctor, knew I didn't have ADHD let alone autism and knew the side effects would be dangerous. Knowing they wanted to do all this while still too young to cope with it made me very paranoid, to the point that I withdrew WAY too much away from people and put my nose further into my hobbies and school. Yes, I'm introverted, but in elementary school and early middle school I acted more introverted than I really am and this hurt my social development. Looking at people from the sidelines might have given me the social understanding people often praise me for though, so there is a plus I guess. Eventually, I grew out of my shell as I realized my fear of being labeled autistic was not rational. Since then, I've made many friends, but some social awkwardness remains. Sorry, this topic isn't mean to turn into a story about overcoming such things. I tend to ramble. Let me get back to the point of perpetuating stereotypes...
I am a bit of a stereotypical nerd if the origin story above didn't make that obvious with the details about introversion, focusing on school, digging into books, etc. Once I hit late high school that came crashing down and I've never fully recovered. I'm currently struggling to get readmitted to a college I attended. My GPA fell too far and well...it's a long story. I have a love/hate relationship with school nowadays. It's terribly broken, but very beneficial at the same time. I hate it, but I love the potential it has if we could fix it. I hate the authoritativeness of the school system too, but also like that said authority is often beneficial in getting kids in line and helping them. As a result, I guess some might describe me as "smart but lazy", one of those rebel kids, another common sub-stereotype of certain types of nerds/gamers/whatever proper terms fit such kids if they fall under any of them. Think Shikamaru from Naruto.
I dislike sports and write long, rambling comments or posts online rather than short, to the point things. To the average person, this looks obsessed and paints an even bigger picture of social awkwardness whether or not it exists even though it has more to do with me just being passionate. So, that's a stereotype in a sense. To be honest, while I do have a problem with making my writing concise, I just as often write long posts just to use it as an excuse to procrastinate (I should be doing Calculus right now for example). My voice is also high pitched and perpetuates a stereotype of its own though I'm not sure quite how to describe it other than stereotypical wimpy nerd voice.
Update: Forgot that I perpetuated even more stereotypes! Just remembered them. Physically, I'm not the most coordinated and as I'm currently living at home with my Mom I perpetuate the stereotype of lazy, privileged white kid. I say this, not just because I live at home and I'm white, but also because my Mom has 2 housekeepers. And, I don't mean housekeepers who just come over once a week. One stays from Wednesday to Friday while the other one stays from Friday to Saturday. When I say "stay" I mean "live here". I'm a bit ashamed honestly and it just makes my urge to get financially stable and move out all the stronger. It's one thing to be one of those white kids with a housekeeper that comes by once a week; it's another thing when they come over most of the days of the week. My Mom likes to claim that my brother and I are too busy to maintain the house and do chores as is she and that she also needs somebody to protect the house while we're out doing our various things (school for him and me, work for her and me). In reality, she is just insecure and wants someone here to listen to her complaining and make her feel less lonely. I feel bad for her frankly, but she's beyond any help she could get for that unfortunately.