I don't know about all the quiet people, but I fall into your generalization. I'm on vacation and while I've enjoyed the places I've been I can wait to get home to some peace and quiet where I can curse my refrigerator for being so noisy. (It is just fine, but when it is all you can hear it starts to seem loud.)

Oddly, when I go hiking in the forest what often happens is I can hear two people, miles away, yapping at each other at the tops of their lungs.

I like the peace when hiking, except in bear country. I don't mind a loud mouth in the group so we don't sneak up on things that cause injury to life and limb.

A bear bell is still more pleasant than the sound of certain kinds of human voices.