This is yet another of those over zealous health and safety rules that mean common sense cannot be applied anymore. Apparently anything over 2.0m high these days needs special care. Maybe I ougth to complain to my bosses since I regularly go into loft spaces as a Surveyor, but don't have any special training
I've even been told by my local council, Surrey, when complainin of broken traffic lights that they can't send anyone as the red lights are too high up