Why are the standards of beauty usually the same?

What you are saying is the majority. There are women who loves fat guy and men who loves a women whatever she has. But the majority of people likes what you have said. It’s because of the taste of human beings , every man likes to be neat, fresh , beautiful etc. On the other hand if you want to keep a pig clean all the time will it like that? or it will rather like to dance in the dirty mud? In the same way a tiger will die in hunger but won’t eat grass. I hope my word make sense :)

Because that’s how the media protrays human beauty; stick-thin girls and muscle-bound men. But most of this is fake beauty, one Photoshop expert estimated that 99.9% of images of women have been photoshopped before being published. In some cultures, fat is beautiful. It’s all about taste really. A person only really becomes ‘fat’ when compared to a really skinny person.

It is not the same. Beauty in the U.S. can be measured based on appearance, and sometimes its based on personality, and actions. While in other countries, it is sometimes look, but for example, in Africa, the concept of beauty is defined by hard-work