PSA: The idea that corsets could be so tight you would have trouble breathing is a myth.
Then why haven't they gotten back in fashion?
Why does anything go out of fashion? Sometimes there are logical reasons, other times it's just changing trends. Certainly one reason they aren't in fashion today is because of mainstream media constantly pushing the myth that they're some patriarchy-enforced torture device. For other reasons, Google is your friend.
@GestalRoyale Tagging this as spoilers would honestly be the spoiler itself. There's plenty of marriage art on the site for characters who don't get married in canon, so a casual observer would just assume this is like those.
I'm reading the Tokypop release and I happened to notice that these lines have a very different meaning. While in the scan it says she had a dream where this happened, in Tokyopop's version it has her narrating that it is her dream, as in her goal in life, to create an environment where no one will look for her when she's gone. I wanted to see the original to see if it was consistent and what made more sense in context. Tokyopop's release is consistent with itself, but I feel like the scan is probably more accurate, since "I want be a loner whose absence no one will notice" is...insanely depressing and doesn't feel like it goes well the tone or message that's supposed to be conveyed.