[1]:http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP...
Besides, what kind of controlled unclassified information could possibly be residing on dormitory networks?
I'm terrified of IPv6 for this exact reason - it assumes every device will have direct access to the Internet. As we've seen with security cameras and other IoT devices, they just aren't designed to protect themselves and are easily hackable, so making them accessible to the wider Internet is crazy. Firewall options for IPv6 for most home routers are limited at best at the moment... I for one am quite happy to have all my local devices happily running behind an IPv4 NAT (in addition to a firewall), knowing they can't be targeted directly without some sort of concerted effort.
I completely agree in principle with the old adage "NAT is not a firewall", but in reality it often effectively works as one for many consumers, many of whom probably don't have the technical knowledge to understand the protection it has indirectly afforded them for the past however many years.