[direwolf20]

It's a legal requirement in Europe for privacy. A long term static address is a personal identifier.

[illiac786]

How could this be a legal requirement and at the same time you can purchase static IPs as a paid option from ISPs, like I did?

[direwolf20]

You're allowed to consensually waive your own privacy rights.

[anikom15]

Does the mailman come around and change house numbers and street names every month, too?

[pmezard]

Any vague source for that?

Asking as a European who did not have his IPv4 address changed for months or even years. Or is it IPv6 specific? But I cannot see why.