While reading through this thread i thought the split paper wallet was a joke.

Maybe you guys think it's funny or romantic; but i ain't trusting nobody with a piece of paper containing all of the money...
One day there will be movies about treasurehunting called "the lost half" or "The missing QR".
If you're talking about my post, I think you might have misunderstood! They both get a copy of the piece of paper with the private key on it, because that's the equivalent of each of them independently having access to the BTC stored there. That IS what a joint account essentially is, right?
I was imagining the private key cut into two
The two are needed to make a pair
One is lost and then we enter into the movie
The search for the long lost Bitcoin XD
And yes, i misunderstood, sorry. A shared private key would indeed be just like a shared account.