I thought it was well understood that the passport should be handed to the passport control officer absent the passport cover.
Some passport control officers won't care, some will go through the drama of removing the cover, and some will abuse the traveler.
Why seek conflict?
By all means, carry your passport in a cover of another country. Sealand seems perfect. But remove it before handing to anyone that needs to scan the passport in a machine.
Originally Posted by
alphaod
I swear the only people who use passport covers are people that don't fly a lot. Just my observation.
I use them to reduce the chance of damage to my passport. If my passport has any damage, I won't be able to renew it.