My point in bringing up your age is that you lack a lot of the perspective required to have a well thought out political opinion, so when you tell other people they haven't really figured their own ideas out, you look like total idiot. If you're 15 you're what, one year into high school? You almost certainly haven't experienced enough in your life or had enough exposure to either side of the political spectrum to have formed a proper opinion on it.
Yes, because age determines how experienced you are in certain fields? I may be lower than the average age group of BLF, but that doesn't mean I lack awareness. If I'm curious about a subject, I will look more into it. My choice, anyways. You're trying to use my age as an excuse to put me down as if I'm someone who can't be taken seriously. That's ageism you're using, yet you won't admit it. I've only made a statement about intelligence two times and that was in a response to a a couple of jokes.