From a programming perspective, you are asking for development resources to produce a change that will satisfy everyone: don't want to see other people's glamour? Great, use our default! Forever.

It could be as simple as toggling a switch on or off, I suppose, provided that there was a single glamour for everyone as the default, perhaps the original clothing you wore when you started the game. Of course, it should apply to everyone, including the person flipping the switch. The entire world, wearing the same starting gear, with the default weapon. That would be pretty easy to program, right?

Asking for anything more than this most basic change would require more development resources than I think SE would be willing to pay for -- especially since they're still working through gear appearances on the two new character races.

<<sarcasm>>Since we appear to be asking for simple toggles for visuals in this game, I would like a toggle to turn every character I meet into a male Miqo'te. No more Viera or Hrothgar to bother me with their lack of hair styles. No more female Lallafel images on my screen.<<end sarcasm>>