Of course all women are free to do whatever they want with their body and appearance.

This is simply a thought:

Biologists have linked body hair (axillae) with the production of axillary odour, believed to play a role in sexual attraction.

The pornographic standard of hairless female bodies may be subliminally pleasing to men who wish to control women. They may be responding to the idea that without body hair she has less agency to communicate sexual signals to other potential mates.

Source: The Scented Ape: The Biology and Culture of Human Odour by Michael Stoddart. Cambridge University Press: 1990