Are you supposed to shave your whole vagina?

No, you are not unless it is medical or infested with Pubic Lice. The pubic hair acts as a cushion over your skin on the vagina. The skin is VERY sensitive. Also, when you have sex the friction between the skins will cause burn and also infection. If you do not like the hair; just TRIM. Do not shave.

It depends on you. Some women wax because it feels and looks hot. But some women don't because it keeps bacteria and feces away.

The hair is actually there to keep the area at the right temperature and keep bacteria away. So no, you are not supposed to but some feel fresher that way. Waxing is better then shaving though but skin irritations are common with both. Trimming is much better.

Unless a medical condition prescribes it, only if you want to. However, some people believe it is more sanitary because you don't have hairs to trap bacteria and feces. Many say it feels and looks better. There's no clear reason why we have pubic hair. Some say it was for babies to hold onto, others say it's to trap pheromones to attract the opposite sex, and yet others say it's for cushioning during intercourse to prevent irritations. No matter the original purpose, it is not needed and the only problem you may have is ingrown hairs. If you shave or wax regularly for a while you shouldn't have that problem.