>>7560441: hygiene. Anything that comes out of the vagina ends up in their pubes. They need to be washed constantly or else they get crusty and gross, and aside from just being unsavoury, it can lead to infection. It's just easier to keep it trimmed.
2. aesthetics. It looks good to be neatly trimmed or shaved down there. Pubes are bulky and make a bulge in panties that can be quite noticeable, especially if you wear tights/leggings, and they can spill out of some swimwear/underwear. Shaving is a good idea if you plan to go swimming, since you don't want your sloppy pubes pouring out of your bikini bottom in public, and lots of women will do it so they look better in lingerie or a state of undress if they plan on getting some action
3. Overgrown pubes get in the way of sex. You have to fucking dig through the thicket to go down on someone that's let their pubic hair get overgrown and there are few things more unpleasant than the feeling of an inch-long wire strand that's come loose and found its way to the back of your throat. And similarly, you have to do some digging just to uncover the entrance, and you can feel the stiff, rough hairs creating uncomfortable friction as you do the deed.
4. smooth, freshly shaved/waxed skin feels good and is more sensitive.
Even the 'bushy' girls you've probably seen in porn wax the hair from their pubic mound and outer labia and just leave a patch above the genitals for aesthetics.
