A key aspect of money is fungibility

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Understanding Money: Its Properties, Types, and UsesMoney Explained: Essential Properties, Types, and Practical Uses

Explore how money functions as a medium of exchange, its essential properties, types including fiat and cryptocurrencies, and its role in the economy.

which Bitcoin lacks due to the bifurcation of "tainted" UTXOs and "clean" UTXOs. Tainted coins can't be used on any exchanges and many merchants won't take them. Gold, cash and monero are all fungible. Every Monero UTXO has no traceable history thus mamingnit as fungible as a gold atom. Privacy is crucial for money.

Monero protects both the merchant and the customer from the money trails.