Society pushes us to be normal, but how does a cultural trend reach the point of normal?

Well, you said culture governs our behavior. And it's not the individual belief systems of people, but it's the culture as a whole. So who is responsible? Like 80/20 thinking, what 20% of this collective group governs 80% of what happens in culture?

We know the bell curve, right? This curve represents the distribution of all things that happen organically, right? So the height of trees, the intellect of humans, they all abide by this distribution curve. 80% of people sit in the middle, and there are a few outliers on each side. We call the Gaussian curve the normal curve because everything in nature abides by that normally, right? So when the mean, the mode, the median are equal, we say that that is a measurement of centrality. So the closer you are to the middle of that normal curve, the more normal you are. So in a population, you are more normal when you are abiding by what the cultural characteristics are of that population being pushed on you, telling you to be normal. Those social pressures