Is it really mandatory in some countries to have this on a RV?

I have the most unique looking RV ever. It's all white. I've never seen another one like it.

Everyone knows curvy lines make the RVs go faster and consume fuel more efficiently. Arches are better for support than straight lines or nothing at all, giving it more durability at high speed.

The swoopy lines are the equivalent of WW1 dazzle camofluge. They (try to) disguise the huge expanses of flat slab side.

I worked for an RV dealership and they all start to look the same after a while. They'll hype up decals and full body paint, but manufacturers have no problem shipping units with the interior coated with sawdust and trim pieces around the slides falling off. Some aren't even grounded and will shock you when you turn on the lights! Some brands are better than others, like Newmar or Airstream. But they're pretty much prohibitively expensive.

I mean, a Sylvansport Go is like $20,000 for a literal tent on wheels, so I guess ludicrous pricing shouldn't shock me anymore.