In all countries around the world there currencies are all printed in paper which is called note though there maybe countries who still use coins till now. All around the world money can be misplaced maybe from your pocket, your hand or maybe your wallet may even get lost but still some people don't feel it when their money get lost because it's not that very high in exchange like in Nigeria where we have our highest currency which happens to be 1k and many other currencies like #500, #200, #100 and others most times we misplace this money and others pick it up with joy of having what you didn't work for but in this recent economy everybody has refused to lose money as usual ( laugh ).
Who told you Op that aside Nigeria people don't feel great losts when they misplaces or looses their fiat currencies from their pockets, wallets or however? Do you think because we've up to #1,000 in a note meaning our currency is more valuable to be lost when comparing to other countries? Do you know the value of just $10 to Naira? Because naira does not have value in our present economy I guess you don't know a lot much valuable a $10 could afford in a stable economy maybe if I should have the United States for instance.
You should also know rat there are average and vulnerables there in the region and so, they could also feel bad if they could lost such amount of money.
The reality is that the pain of misplacing your money at no returns is usually painful only when the lost fund is not affordable to be lost.
Take that for a clear notice.
What if the Bitcoin was in notes and with the same value as it has now, do you think anyone would misplace it or even walk with it on the street. Eventually you see a Bitcoin note will you return it to the owner. Let's be sincere and also see it as fun.
Why not, no one ever intentionally misplaces their money nomatter how little it maybe. So, there's Possibilities that anyone could lost even more than 1-Bitcoin despites its value. Mistakes and carelessness will always occur to some person's sometimes and bitcoin wouldn't be the most ever valuable to be lost in such cases because many has lost gold and other asset's worth than the value of bitcoin today at the rate of $71,000. As long as the printed bitcoin is not magnetic technology with the body who holds it then it is possible to be lost or misplace. One thing is sure that when you hold a treasure or a valuable one would always be careful in handling it but there'd always be that tendencies to loose guard from it.
For someone to pickup bitcoins by the streets and return it back to the owner is possible and impossible because there had been people picking worth than 1bitcoin of today's value and still finds a way to reach the owner for retrieval while some persons made away with it even when it is the least penny of $1. It all just depends on the individuals if it was a good Samaritan or a treasure hunter.