DIDs don’t need to be associated with a wallet, or directly linkable to any blockchain for that matter. This is just a stupid decision that a bunch of ethereum projects use because they don’t know any better.

Christopher Allen has been publishing research on the topic for many years before “web3” was used at all, let alone the recent hype cycle. A good thread with links to various articles:

https://twitter.com/ChristopherA/status/1386715286913486857