[svandamme]

i think there is a massive difference in mentality between US and EU

here, we are restricted , and when we do get the licence, we are taught that, in any case, whoever tows a big trailer
is responsible for it's condition eg
we can rent a double axle trailer, but if the cops stop the driver, and the brakes don't work, lights don't work, emergency disconnect, it's overloaded, the load isn't properly secured
or whatever

the driver will get a ticket for each problem found
whoever rented this thing out, pretty much is not liable, the driver is responsible to make sure he has the right licence, skill and equipment...

if it's not, he has to complain , get it fixed, or rent somewhere else where he can get the right gear