^ That's an interesting point. I was focusing more on a fictional perspective, because you get tons of female knights and stuff in stories, even though historically, I'm guessing virtually all knights were male. Fantasy and fiction remove the need for accuracy, so ultimately it's more about the aesthetic than anything else.
The lack of sailors might just come from sailors being underrepresented in fiction in general. I guess the modern age is so full of conveniences that most people don't really get how momentous it was to sail into the unknown seas in search of new land. Plus, a lot of spaceship-oriented sci-fi scratches that itch, and allows you to dodge around technicalities with stuff like warp engines, while in a story about sailors, you'd have to bring in actual nautical terminology, which is too esoteric for most people to care about.
The closest I've seen to sailor rep is the pirate fiction genre, and even that's more about the thrill of rebellion than anything related to the ocean or sailing in particular. One Piece isn't known for it's accuracy, and stuff like Azur Lane and Kancolle revolve more around the player's self-insert making decisions than the women themselves operating as sailors.
Which ties back into my original point about how we desperately need more sailor rep, whether it's hyper-realistic or even relatively fantastical. You'd think Japan would be more into it, considering that they made the sailor fuku a mandatory school uniform for about half a century.