I do partly share Agbe's suspiciousness of easternklaas' story, to be fully honest.
You said, you did not know or have no idea on bitcoin or Wallet but from your discovery of the paper wallet, you noticed that it contained 0.6 BTC which you confirmed that it is bitcoin from the first sight.
On the other hand, it is plausible that where he lives, a lot of stuff is washed up and easternklaas enjoys picking up whatever interesting things are left in the sand.
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Sorry,.. I maybe overstated my naivety.. I had heard of bitcoin & have a basic understanding of what coins are and how they work. I've never owned any or have ever cared to tbh. I didn't instantly recognise it as anything more than what I thought was a neatly folded cheque in a plastic pocket amongst the washed up Only upon drying the card was I rlly able to identify the btc logo.
There's soo much rubbish blown onto this beach. Beachcombing passes the time whilst the dogs chase birds and roll in the remains of dead fish. I also came home with 2 x rubber dog balls and a funky piece of driftwood.
I scanned the initially concealed QR code on my phone, entered the also concealed code and was presented with a web page with info pertaining to a btc balance of 0.6104...ish. Is this typical of how these things work? I wasn't required to enter any other info. Seems a bit too easy to me....