Problem: due to the fact that most people don't have C category drivers license, camper manufacturers need to keep their products as light as possible in order to stay under 3500 kg. Especially for integrated and half integrated vehicles this means that safety issues become of secondary importance.
Solution: Campers' technical limits primarily need to be set at the dimensions and only secondarily to weight. This will allow manufacturers to use more robust materials and install weigh costing safety measures.
Ultimately, campers need to be safety tested similar to comparable vans.