What is the use of pubic hair? Although shaving gives me boils and ingrown hairs, it really makes the odour from my privates better. Any alternatives?

Sexual attraction. I believe that anthropologically it was an attraction to the opposite sex - both visually, aromatically and for soft touch. Unless there was some illness, the smell was a desired one. If you and your lover prefer less scent, frequent shampooing should be enough to minimize the smell. Scented or baby oil can work too. Perhaps you can learn to like it - it's nature's perfume. Preferable to boils!