Sometimes I'll have an answer for a question here but then decide it'd be weird to answer since I'm only 13 and don't really know anything about it. Am I right to not answer?

For example, I was about to answer this question, but then I realized that it would be weird for me to have anything to even say! But then again, I really thought I had a good point. I’ve answered a few questions like this and gotten quite a few GAs…So what would you say is the right thing? Just answer it and remind people that I know nothing about it?