Security is one thing but safety is another . . You have small children in the awning or around the caravan and potentially can pull a live wire.. it's not locked bollard end but once pulled the cable isn't live.. . How many kids have been electrocuted, none yet.
Are they locked in the Uni III ?
But the pins are recessed on the EHU lead and behind a spring-loaded flap - child would have to lift up the flap on the van, pull out the lead (considerable force which would set the alarm going on the fridge for lack of power), open the flap on the end of the lead (spring loaded), keep it open and stick their fingers about 3/4 inch down a hole. Has there ever been a case of that happening (esp given pretty much every motorhome has always had that arrangement)?
No, the flap on the van isn't locked, I'm happy to say. Neither is the external 240V output socket, which I guess is equally dangerous for kids.