You can just apply for protected address. I did that once, because I did not want that my .dk domains whois would show my name and address.

I managed to get protected address, it's just to log in somewhere and request it. I can't remember the details, but it made for example banking _slightly_ more annoying. They would call me so they can send me a letter. Also makes it harder for people who know your name to look up your address.

Never managed to get my name removed from my domain whois and at some point removed protected address again. In theory, if I share one of my other .com domains on the internet, an attacker could reverse DNS the IP, find my DK domain and thus get my full name and address.