Does everyone have a SCR?

I'm curious, does everyone actually have a Secure Crypto Record, or SCR, for their cryptocurrency holdings? I understand that it's a way to securely store and manage digital assets, but is it a universal requirement or just something that some people choose to do? I'm interested in learning more about how prevalent the use of SCRs is among cryptocurrency investors and traders, and if there are any benefits or drawbacks to adopting one.