MGibster
Legend
More relevantly, it's not like Druids only use 100% non-metallic gear. Their magic isn't made out of anti-metallic particles that annihilate on contact. They can carry metal objects, they can wear clothing and gear that employs iron buckles just fine, and half their weapon options are made of steel. It's just a legacy flavor rule that they can't wrap themselves in primarily metal armor. So there's plenty of leeway for metal as a secondary component.
You're absolutely right and I'd be totally fine with a druid in any game I'm running wearing studded leather. Even with traditional rivets I wouldn't think of it as metal armor any more than I'd think of my leather jacket as being metal.