the immersion problem made by glams

[kaynide]

Then it's going to "fix"2. Make more npc's wear this glams/gear. Then it be normal part of the world.

This is not really directed at you...more an agreement to your post but also examples that what you're saying is already is happening.

I mean, yeah..most people are talking about T-shirts/jeans/fanny packs when they say modern...buuuuuut a number of characters already do wear what is technically modern glamour:

-Rowena was kinda infamous for having her outfit changed to the newest level 1 glamour including things like the leopard print bikini top (just google "Rowena outfits")
-The Garlean Empire in general
-Most of the iron works have some form of semi-modern fashion.
-The Sky Pirates, while I would argue are not "modern" in the most modern sense, are wearing very Steam Punk/Diesel Punk inspired garb; some of which is very Mad Max.
-Debatable, but some of the Scions in general wear fashion that is most certainly modern or semi-scifi more than it is fantasy.
-Blue Mage, is essentially a really gaudy suit and tie with a cape.
-The newer NPCs around the Ocean Fishing docks have fairly modern glamour and/or the new dyes.
-Gold Saucer in general (butler suits, bunny girls, etc)

...and on top of that, aside from Rowena the devs rarely change an NPC's outfit..so once a new set of glamour appears, it will only typically be seen on future NPCs (like Ocean Fishing).

...all that said, yeah, they could absolutely do more as the game expands.