As it’s backed by real US dollars as well as other high quality reserve assets (since recently, USDC is centralised. The technology to mint new USDC and hold the backing USD value is based on a legal framework. It is currently maintained by the CENTRE consortium which is a trusted entity in the ecosystem and audited monthly by Grant Thornton. Furthermore, USDC is the first regulated cryptocurrency bringing a lot of legitimacy to the space. Still, the infrastructure is based on the Ethereum blockchain where regulators have little power.