Travato seat belts

[ODABASH]

Can we add seat belts somehow to carry more passengers than just 1?

Seems odd we can only take one other person along!

[Jon in AZ]

Welcome to the dark side of driveable RVs: passenger safety.

Compared to passenger vehicles, safety oversight of commercial vans is lagging. Even for the front occupants, I have yet to see any rigorous crash testing from IIHS or NHTSA for the 1T vans commonly used. It is 2021 and the Chevy Express passenger vans still do not provide head restraints for rear seat passengers (Transit and Sprinter do, and Promaster doesn't sell a passenger version in North America).

Ideally you would be installing crash-rated forward-facing seats and DOT-approved 3-point belts using manufacturer-certified mounting points and methods. My Chevy Roadtrek Class B does have 3-point belts attached to factory mounting points, but no head restraints and not sure about the seat itself and attachment.

Then there are all the cabinets and their contents...

Sure you could install seatbelts, but you have no idea how they will perform in a crash. If you have good engineering sense and visual access to the underlying structure to determine where the reinforcement is, you might come up with a reasonably safe set-up.