Why can't they hang a tag on the gun that you can take off. The warnings are all in the instruction manual...
They were sued for around $400,000 after a minor stole one of their revolvers and accidentally shot himself with it because he didn't know how to use it safely.
He didn't know how to use it safely because he didn't have a manual because he didn't bother to steal the manual.
Now it says, right on the gun, to read the manual before you use it so it's harder for someone to claim that Ruger is at fault for their own boneheadedness.