You have a point, and I would listen to a smaller window. However, I don't just think it's just age but also how long you have been indoctrinated under some backwards set of values. Speaking from experience, it's taken me 25 years to mostly embrace a different set of values when it comes to accepting people's sexual preferences. I say mostly, because even now my brain doesn't immediately send a "normal" signal everytime I encounter a situation along those lines. I still have to check myself from time to time. I believe that's true for a lot of people, especially in my age range and older. In fact, I'm guessing the older you are, the harder it is from a majority standpoint. I would than apply that line of thought to someone who grew up and was indoctrinated under Sharia law or some other backwards set of values and come to the conclusion that some deprogramming is probably necessary before allowing someone like that to have an affect on policy. I know it isn't going to be perfect, but I think only age basing is a mistake.