Comment by chihuahua

It's already there, in the European Convention on Human Rights [1], Article 8:

ARTICLE 8

Right to respect for private and family life

1. Everyone has the right to respect for his private and family life, his home and his correspondence.

You have the right to privacy, just no actual privacy. Just like in Life of Brian, where Stan/Loretta has the right to have children, but can't actually have children.

1: https://www.echr.coe.int/documents/d/echr/Convention_ENG