The idea of a distributed ledger that can be done worldwide without any government involvement has value by itself.
Indeed. It allows people to get around all those pesky anti-money laundering legislations and international sanctions. Otherwise it provides nothing of value to anyone who has ever needed to transfer money, something that is flung around in the billions across national borders daily without issue and without bitcoin.
The idea that you can buy, hold, and sell bitcoin somewhat anonymously* has value by itself.
If you want to buy, hold and sell something, then you're far better off doing it using traditional stocks issued in paper format. If anonymity is your goal, announcing your trades and holdings on a public ledger is kind of stupid, especially since that end goal of something that can't be used directly as a currency in an meaningful way for anything legal needs to at some point be converted into an actual useful currency... by someone who very much is either doing something illegal, or subject to government rules.
Congrats, you went from having a transaction and single holding tracked, to having your entire payment history tied to you, all because ... anonymity?