@SarahGen-- Anyone can make a logical fallacy, it has nothing to do with intelligence or cognitive function. Logic is a science and it's something that can be learned. So we can learn to avoid logical fallacies.
Do you ever buy two of something that you only need one of because it's "buy two and get the second one on discount?" Or do you buy a product that's $5.99 rather than the product that's $6.00 because it's cheaper? If you do either, you are also making a fallacy in logical reasoning.