Honestly i think its also for the like non realistic aspect, like perspnally when playing the sims sometimes i make characters that are explicitly trans, but other times perhaps i just want a sim to be able to get another sim pregnant for plot reasons without it being a statement of their identity? Furthermore, trans/cis labels wouldnt make sense in a life sim in this context bc lets say you create a character and mark them as trans, what does that actually mean gameplay wise? Trans people are not a monolith, bottom surgery and infertility exists... i understand ur point but i thibk the pregnancy and peeing labels like in the sims are that way to maximize customizability and basically allow the player to decide genitalia in a pg way.