Why would anyone use bitcoin instead of cash as money?
I'm kind of wondering why you picked the username you did if you don't think bitcoin should be used as money. As your name kind of insinuates, you can send BTC to anyone at any time, in any amount, all for the cost of the transaction fee. There is nothing and no one to stop you from doing so.
But the point is that Satoshi understands privacy is important if your will use something as money. His idea was good but it failed because he didn't foresee how weak that privacy is about "no one will find out it's your bitcoin address".
Sure, it only works because the ledger is public. But there are ways to minimize the traceability of your spending of funds. The price for 1 BTC is currently over $100k, so I don't think it has exactly "failed."