I've been conducting experiments. Mostly of the linguistic variety but occasionally other varieties as well.
When I moved to France and was shocked and dismayed to discover the nearly national (the east of France being excluded) dislike of cinnamon, I couldn't help but wonder, was it nature or nurture? If Generation A doesn't like it, having never been exposed to it, they probably aren't going to introduce it to their offspring, Generation B. And so on.
I don't know any French people who like cinnamon. None. I'm sure there are a few out there, but they're rare. At least in my neck of the bois. You will be hard pressed to find any baked goods here with cinnamon in them, including ginger bread. Not that I'm complaining about the baked goods. They're excellent.
But I do like cinnamon. I like it in my gingerbread. I like it on in my apple tart. I like it in my carrot cake. I like it in my coffee cake. I like it in my fruit crisps.
Sometimes I make things with cinnamon when we have people over. They almost never like it. These are open-minded people. Could it be genetic? Have the French been short-changed at the cinnamon-liking-gene market?
My children, being half-French and raised in this cinnamon-disliking nation, have been excellent participants in my evil culinary plotting.
They love cinnamon.
You can all take a deep breath now, the suspense is over. It's been proven, it's nurture, not nature, that determines one's propensity to like cinnamon.
Peanut butter too.