Passenger Trays

All cars are now equipped with cup holders as a standard feature, but I still have to hold things on my lap in the passenger seats. My idea is to simply design and install safe trays for passengers. The trays could be installed in seat backs like airline seats for rear seat passengers. For the front seat passenger the tray could be designed to fold out of the dashboard or armrest. It would make drive-through dining more convenient.

Thanks for your consideration.
Tom Fowler