It's a strange thing, becoming British. In the last week I received a British Passport, which is a de facto et de iure recognition of British citizenship. My father is British, you see. And yet, in one sense I did not become British - there was no naturalisation or citizenship ceremony. It was a claim to a pre-existing status. Yet, if I had never made the claim, I would never have been considered a citizen. That's why it's such a strange thing. The very act of claiming a legitimate citizenship implies that I was always a citizen, but if I had never claimed citizenship, I would never have been considered a citizen at any time, yet it is not the claim itself that creates my citizenship.
I find this an odd thing.