Really does seem like a weird thing to reverse, from my perspective. I never really saw wearing kimonos as sexually-oriented, and it's not like you don't see any guys in hakama at all in these sorts of events in manga or anime. Also, I thought they already made it clear the girls still like shopping, so fashion's still important, just underwear's gotten a downgrade in priority... Even though I still think the author's an idiot for making good bras less of a priority- it's not a matter of sexuality or fashion or anything, it's a matter of good, comfortable fit for a very awkward piece of female anatomy that needs solid support. Nothing us males have compares to breasts even in the slightest in this way. I can get the panties being an afterthought (they just have to hug the hips, right? Just like male underwear, get sufficient elastic in generally the right band size), but bras have a very distinct purpose that fails if you try to go a 'one size fits all or most' path. It's a sign of ignorance that it fails to get the attention it needs in this world.
Honestly, the author seems to choose the weirdest shit to swap with this world, from my perspective.
Though we're getting some interesting commentary on organized prostitution, it seems. Not that I was ever the type to make use of such a paid service (like Ichikawa has said before, at least in relation to on Christmas, it's pathetic). Just be a decent person, get a girlfriend you click with, and get close enough that you both want it. Don't push it. And not only will you have sex, you'll have
loving sex, which I think is the best form, anyway.