Agree ... I just changed the spelling of my name when I got citizenship.

Usually the name change occurs when someone changes is religion and decides to become a muslim.

For example; Steven Demetre Georgiou (stage name Cat Stevens) became Yusuf Islam, Cassius Marcellus Clay, Jr became Muhammad Ali, Ferdinand Lewis "Lew" Alcindor, Jr. became Kareem Abdul-Jabbar.

My thought... just change the name to Aleks for official things, and put Alex with an X on everything else. The Dutch alphabet doesn´t include an ö or ü either, but official documents can include these letters, so many Turkish people can still keep their names (including ´weird´ letters) as they are. The letters ı, ş, ğ and ç are not registered in the Dutch computers, so they can´t be included in official documents. However, you see these letters around Holland none the less on unofficial things. I´m not bothered by it, so let the man keep his X as well 

That wouldn´t give the feeling that he is an insider. "X" is alien to us. It reminds us outsiders.

So... ü and ö are alien to "us" Dutch too, but Turkish people here still use it on their foreign documents, and letters like ğ are also used unofficially. I didn´t hear an official complain from the Turkish government that Turks need to work harder to not be perceived as "alien" in Holland, and lose those letters Turkey is becoming more international, and I´m sure people would get used to an X as well.

The thing is Turkish alphabet was designed as a phonemic one. (You can write down what you hear). X can be written as "ks" using our alphabet.

We are talking about a new Turkish citizen here. Are you talking about Dutch citizen Turks? So what happens when a Turk named "Özgür" for example is granted Dutch citizinship? Is his name preserved or written as Ozgur?

I am talking about citizens. The ö pops up everywhere. And people who have letters that the system doesn´t recognize like ğ use those letter unofficially. I remember one of the kids in my class, his name was Doğan, while he was born in Holland. Only after starting to learn Turkish I discovered that we had all been saying his name wrong. We don´t have this silent ğ in Holland, so everybody called him Dogan. We all talk a lot about Europeans not accepting Turks on this website, but what does this whole letter issue say about Holland and Turkey. How Turks behave in Holland, and how foreigners are expected to behave in Turkey?