My 2012 FunFinder XT276 has a key for the front entrance door, a key for the rear entrance door, a key for the rear ramp door, a key for the toy lock, a key for the outside shower door, and a key for the cargo bay door.
All locks are keyed differently with the exception of the two locks on the rear door ramp that are use the same key.
Then add a key for the hitch lock and a key for the receiver hitch lock and keys for the tow vehicle and motorcycle.
With all the keys on a key ring, one looks like a janitor at a commercial building.