Why are roll cages not allowed in domestic vehicles?

[MacLandon]

There are several reasons why roll cages are not allowed in domestic vehicles: 1. Increased cost: Roll cages are not made from ordinary steel but rather from cold-drawn seamless carbon steel pipes that are bent into shape. Installing roll cages in family cars would significantly increase manufacturing costs. 2. Space occupation: The installation of roll cages naturally reduces interior space substantially. To accommodate roll cages, rear seats often need to be removed. 3. Reduced comfort: Many vehicle configurations would have to be removed when installing roll cages, greatly diminishing the comfort of the vehicle. 4. Illegal modification: Ordinary vehicles are not permitted to be modified at will, and installing roll cages may be considered illegal. The installation of roll cages inevitably involves altering the original vehicle structure, introducing more safety risks with unauthorized modifications.