I get that not everyone wants fantasy as a theme in their game (even though the game itself IS fantasy,) some people want to fantasize about only things that could happen in real life, or want to simulate their as-yet-unlived life, or maybe their should-have-been-lived life.
But there's room on the broom for everyone, whether your fantasy is grinding away at school/college/job/family, rinse and repeat, or whether your fantasy is traveling to beautiful places and exploring magical hidden tombs and encountering curses, or learning magic, or being transformed into an immortal vampire.
Sometimes what a person wants changes over their life because of what they have experienced: a person who hasn't married or had kids might find playing at it in the game, a compelling wish fulfillment fantasy or just a nice way to have a dream.
Someone who craves something unusual beyond the everyday ho-hum life of real responsibilities, might be more interested in living the impossible dream of fame and fortune or turning into a vampire, or being a magician or alien walking among humans.
Sims1 was hardly a realistic, real-life simulator: the Grim Reaper, Tragic Clown, and ghosts aren't part of any real life anything. It combined an attempt to represent a realistic playable gamified life, with humor, fun, danger, and sarcastic wit.
The cool thing is, even vampires can grind away at jobs and have to clean the lint filter, repair a leaking faucet, pay the bills or face the wrath of the repo person.
The game offers realism in a context of both plausible and implausible scenarios.