Motel room rentals are not a Constitutional right but the right to keep and bear arms sure as hell is.
Infringing upon the Constitutional right of an American based upon an age that is considered an adult in voting, military service and most other things is despicable. An 18 year old certainly has all the other Constructional rights.
The trouble with you Moon Bats is that you don't understand what a Constitutional right is all about. You don't know any more about the Constitution than you know about Economics, History, Biology, Ethics or Climate Science.