Perhaps it’s not the same as the UK?

In the UK…

1. Strike needs your details and ID to set it up. (Full KYC).

2. You send sterling to Strike via a registered bank in your name (KYC).

3. You buy sats with your sterling (and now there is a very clear link between your cash and the sats you buy).

4. You send your sats to your cold storage (but before you can, Strike asks if you own the wallet address or not) and thus a clear link is established between your cold storage and your KYC details.

That’s it. And it’s ultimately very shit. But it’s all tied to UK Gov regulation and Strike conforming to it.