The glamour system lets you appear as whatever you want using magick.
Yet the glamour system doesn't let you glam if it's a class you don't have the right weapon or soul crystal for.
The biggest focus in FF14's community seems to be glamour and it's one of the major focus for the devs.

So.... Why can't we glam however we wan to glam like other games? I get race/sex restrictions because the game uses static assets but the rest? There's no real excuse.