It doesn't work on surface ships, might as well share the love with the bubble-heads. I've worked with stellar female officers and enlisted, and I've also seen multiple pregnancies leave a shop short handed, plenty of fraternization and a good few false rape allegations, and some damned awful legit ones. We're fighting a war with limited funds, might as well try to make things harder. Hell, we discriminate against the handicapped also, might as well build some wheelchair ramps while we're putting in the female quarters.