Look if the game is set in 2oth century than its true but when there are games set in the 18th and below century where only the rich could afford it .
What is there to afford when you shave there? There weren't beauty parlour during the 18th and before, it was something cost free.
Most men and women did not save or wear high heel shoes or eye brows shaven.
It depend where and at what period of time.
The oldest razors date from around 3,000 BCE, and have been found in Egypt and India. I don't know for sure about India, but Egyptians are notably known for their disgust regarding body hairs, whatever the social class.
[Note: Like cultural values play a role here, I'll focus on the Mediterranean and Europe zone, since it's the setting for most games]
For a long time during history, those said body hairs, including pubic ones, where what made the distinction between civilized and uncivilized peoples. This especially during the times where living condition between the ones and the others weren't this different. Peoples needed a way to show, and even more to feel themselves, that they were part of the civilized world, and shaving, including pubic hairs, was one of them. This apply for Egyptians, but also ancient Greek and Romans.
To this have to be added the social value carried by hairs. It was the most visible symbol of virility. Every one, outside of the aristocratic class, was more or less muscled due to the rudeness of life, while no one cared about developing those muscles by pure pleasure. Therefore, what made the difference between a man and a boy was their body hairs. In such context, wearing them for women was already out of question and, yes, depending on where and when, it included pubic hairs.
Must also be remembered that the perception of age was different at those times. You were seen as old way earlier than nowadays, this due to the shorter life expectancy but also the rudeness of daily life; you became old the instant you needed help for your daily chores. For women, shaving their pubic hairs was a way to still looks young, barely nubile, to the eyes of their lover(s), even when reaching their thirty.
For those reasons, during middle age all women tend to share what was know a "book of secrets"; with "book" being to take in a lax meaning, and a later terms, for long the secrets were shared orally for obvious reasons.
Those
books were recipes to stay young and fresh, still appealing for their man. The oldest I heard about date from 1532, and contain, among other recipe, one to remove hairs from anywhere on the body, with the following description in the book putting enough emphasis on the "anywhere" part to clearly hint that it include pubic hairs while not names them in order to not offend readers' modesty. From memory, the wording was "including the most hidden ones".
So, while it obviously vary depending on the time and culture, like I already said, and also depending on the individual (but not in regard of their social class), bush removal wasn't something necessarily absent from all historical periods.
Therefore, while it clearly annoy you, there's nothing really abnormal in having shaved pussies in fantasy adult games. This especially since most of the women you'll see in those games are sexually active, if not perverted, and therefore should seek to the graceful barely nubile appearance, while being also deviants in regard of lambda peoples behaviors.
But the most important point stay the name of the genre itself... It's "fantasy"... There will be orcs, there will be magic, there will be demons and succubi... There will be futa and men will fuck ten times a day every day without problems...
Isn't complaining because women don't have bushes, like they supposedly should, a bit ridiculous in such context?
