You are incorrect, and probably referring to SHA256 which is a one-way hash function, not crypto.
Would it help if I said again that Bitcoin is not crypto? It is legally classified as sui juris.
It disturbs me when you say "Bitcoin and other cryptocurrencies". Bitcoin is sui juris, and not one of the cryptos.
Ad hoc. P2P. Case by case. Whatever the traffic will bear. There is no standard.
That may be frustrating to hear, but there is no formula for equating one's own instance with somebody else's other than free market trading.
Fiat money sometimes handles this by having cost of living adjustments, wage and price controls, etc., but those are just lies that the public accepts until they don't.
Again, Bitcoin is just a payment protocol. It doesn't have any way to judge how much you should get.
We have established that there are only two parties, right? What each of you think and do on your respective sides of the bargain is not a Bitcoin service. Bitcoin is just the protocol that enables you to smoothly make the trade when you do agree.
P to P.
There is no third party. There is no other currency. There is nobody else to interfere or to criticize. Just you and the other guy.
Get it? You make an agreement, then transfer the BTC. That's it!
Simple!
Bitcoin's value comes from the commerce that it enables. The same as any other currency.
Bitcoin keeps your transactions strictly P2P. Don't be stupid and involve third parties, ever.
Keep your financial information to yourself, and don't KYC for any reason.