Know better, do better. Something as little as these simple decals could teach the car behind you about the importance of extended rear facing.
But if anything, it shows your support on the topic that really should become the Norm
Colours may vary. Car seat is generally white not black becuase I always recommend putting car decals on the window not the paint work. And lettering may change pending availability. If you have a preferred colour combo, please leave it in the notes :)