US law requires your bank to collect and verify your identity and crosscheck against a series of loste. It is part of the Patriot Act post 9/11. Unfortunately for most banks this means that they require an SSN. Technically an ID or ITIN should suffice.

I have a US bank account that I opened only using my passport and a US home address I live in. and I have a Privacy account. I don't have an SSN. Does that mean I'm locked out of Privacy come 2022?

There's obviously no requirement that you must be US citizen. The requirements are known as KYC -- know your customer -- and simply require a certain amount of due diligence. It means you've verified that the customer is who they say they are, and that the account is in their benefit and not someone else's. It's part of the wider AML framework -- anti-money laundering.

It sounds like Privacy is falling into KYC territory and is not able to farm it off to the host banks. But then any limitations around requiring SSN are due to their implementation, and not to the KYC requirements.

Right, this is crazy. I'm a US citizen but don't have an SSN and couldn't get one last time I tried.

Somehow I’ve assumed every US citizen has an SSN. Are there obstacles you encounter from not having an SSN? What is the process for opening bank accounts or applying for loans?

Did you not apply for one? You’re eligible as a citizen or eligible resident. I have so many questions about this edge case.

Every citizen is supposed to be given an SSN.

Parents can opt out of having an SSN issued for a child at birth in the US.

Sure, but why would they? I can’t think of a good reason.

Regardless all citizens are eligible and should be given an SSN if they apply.

Parents do all kinds of things with the intention of protecting their children. Not all of it is well-informed.

You don't need an SSN before a certain age, so this isn't weird.

Sure it's weird. It's easy enough to do when the child is born, why wait?

My daughter had her SSN used when she was around 10, and I can't recall her ever needing her SSN as it's no longer required for things like medical insurance, etc.

fwiw you don't need to be a citizen to have an SSN, you just need to be legally resident.

I don't know if it's something you have to apply for, I was 20 when I moved to the US so my parent handled all the paperwork. Just wanted to float that SSN != citizenship.