Please lift glamour restrictions!

[Naunet]

So no, your Nymian scholar can't use boots designed by the Allag to help Summoners manifest and control primal manifestations.

That's fine, because she isn't. That's not how glamour works in lore. You don't literally equip the gear - you cast an illusion over your current gear.

I don't think any parties involved (eg. Tonberries of Nym, Padjali, etc.) would appreciate having their image tarnished by another group wearing it. Let's also ignore the clipping issues it would have with, say, Dragoon, Ninja, Monk especially...

Your first point is baffling as far as lore excuses go, and as for point two... I really don't think potential clipping issues should be a concern. Let players mix and match and decide if certain things clipping doesn't float their boat.

Diversity is not a bad thing

It's not diversity when your options are limited such that everyone of your job is wearing the same stuff.

I also think that this would be a simple fix if they rolled it into a complete revamp of the glamour system (to include all the problems you mentioned).