There is a reason behind the existence of all of our organs and bodily features. As humans evolved, their body evolved as well, developing a number of features in the process, which later on help it survive the ever-evolving times.
By now, you might be sick and tired of body hair and it might seem redundant to you, but evolution says something different. In fact, our body hair is there to regulate our body temperature and help out the process of sweating, which is one of the most crucial processes for maintaining the normal body temperature. But what about pubic hair?
Even pubic hair comes with a function. It acts as a sort-of cushion, if you like to see it that way, and protects the skin from abrasions and cuts, while at the same time, it keeps the vaginal opening protected from dust and bacteria.