I have a bit of a follow up question.

It seems there is a "type" of women that every generation likes. Now I'm sure there is enough variation in the population for there to be examples of almost every type. But how do preferences for these types of bodies develop in society?

Here is an example of what I am talking about. https://greatist.com/sites/default/files/BodyImage_Feat.png

Another example would be men and facial hair.

If this is the wrong place to ask this question I apologize.