It's a pretty funny story. I'm an aromantic asexual.
Ever since I was about ten years old, the thought of getting into any romantic relationships sounded utterly pointless to me. I didn't think it was gross, repulsive, or disgusting. I just couldn't understand why so many people, especially my fellow elementary school students, cared about it. Whenever, I would express such thoughts, people would tell me things like "You're only ten. When you get older, you'll change your mind about this in the future."
I just went with that, and from that point, I naturally assumed I was straight. Things were still awkward when fellow classmates in elementary and middle school would ask me questions like "Who do you like?". I would always respond with something like "I'm not really interested. I'm waiting until I get older to get into dating.". People thought I was weird for that, but it was pretty much the only way I could respond.
Of course, I only assumed I was straight from about ages ten to thirteen. I started falling back to the assumption that maybe I am asexual when I was fourteen. I knew what the term meant for a long time, but I never identified as it. I thought it was getting ridiculous how so many classmates kept talking about who they want to date and fuck while I had no interest in any of that shit, yet people kept telling me shit like "Just wait until you get older!".
Well, I did get older. When I was about fifteen, I started assuming that I was possibly straight or maybe even bisexual. However, this was an inaccurate assumption, and I didn't realise that until I got even older. What I was experiencing was purely aesthetic attraction. I could compliment people on their looks, but I never had any desire to form a romantic or sexual relationship with them. I didn't really confirm that I was asexual until I was about sixteen, and here's how it happened.
So many fellow students in my class talked about how great porn is. People asked me really weird questions like "Do you watch porn?" and when I said no, they would respond with things like "You're missing out." This really made me curious, so I decided to look up some pornographic GIFs while everyone else in the house was asleep one night, and...
I found it absolutely disgusting. I found it so hard to understand how people could watch that shit without wanna to bleach their eyes. I realised that I wasn't "missing out" on anything. After this moment, I started to look more into asexuality, and I realised how many asexual "traits" describe me like:
So, I can confidently say at around age 16 is when I began to identify as asexual.