...you know whats funny about the Ao Dai? I noticed the other day that it IS different between male and female characters - they have a different pattern on the front and personally I like the one the guys got better to be honest.
In regards to your whole topic... I can see where you're coming from and I wouldnt mind seeing more "manly" fashion for the guys, but I also feel you're a bit unfair and are only cherry-picking the pieces that fit your narrative.
For starters: We have very neutral gear in the game aswell - I'm looking at that leather jacket und several parts of gear spring into my mind that would sorta match it. We dont need to pretend that you cant achieve a "manly" look in the game.
Talking about that jacket: One thing that comes to mind is actually the Leonhart-jacket we got... which then reminds me that we got 4 glamour-sets from previous FF-characters. All male, but labeld unisex. I'm not complaining about this, but I'd like to point out to you that we got Squalls outfit, but not Rinoas dress. That we have Firions armor (however frilly and feminine it might be), but not Marias. That we can dress up like Cloud, but didnt get Aerith or Tidas outfit. That Zidanes clothes are in the game, but not Garnets, Eikos or Freyas (...and neither of those girls is even wearing extremly girly clothes, not counting Garnets queen-dress).
It stinks when guys dont get their fair cut of glamour and I'm very, very much for unlocking every glamouritem for both genders.
But I dont see any reason to pretend that there isnt any "manly" fashion in the game.
...and there is quite a bit of unisex gear that looks good on both sexes - and probably quite a lot that people prefer on guys.
Colour and combination are playing an important role here aswell - you're showing that spring-set from the GS-glamour and I dont see how the shirt (the shorts change anyways for the guys) cant be worn with something that will make it look more like a "mens shirt".
You really put effort into showing and underlining how femine something like a simple sweater can look like... I never actually considered that to be extremly femine? It doesnt has a cut that I would associate with "female clothes", like for exmaple a deep V-neckline.