> if yoi tell me your birthday how can i forget it? That's not really relevant. GDPR doesn't ask people to forget things out of their minds. So let's rephrase

> if yoi tell me your birthday how can i forget it? That's not really relevant. GDPR doesn't ask people to forget things out of their minds. So let's rephrase to a more relevant example: > if yoi provide me your birthday on a web form and I put it in a database how can i forget it? This now becomes relevant, and easy do answer. You delete it.