It's impossible to represent that on paper. It could be misrepresented as a specific number of spaces. Depending on the position on the paper, it may also be hard to tell if the carriage return comes with the line feed. Unless you want the document to be in ASCII or EBCDIC hex, it's like writing an ambiguous math problem where the answer is different depending on how you were taught about the order of operations. Don't do this to your kid, Abcde.
Once I was tasked with doing QA testing for an app which was planned to initially go live in the states of Georgia and Tenessee. One of the required fields was the user's legal name. I therefore looked up the laws on baby names in those two states.
Georgia has simple rules where a child's forename must be a sequence of the 26 regular Latin letters.
Tenessee seemed to only require that a child's name was writable under some writing system, which would imply any unicode code point is permissible.
At the time, I logged a bug that a hypothetical user born in Tenessee with a name consisting of a single emoji couldn't enter their legal name. I reckon it would also be legal to call a Tenessee baby 'John
'.
asking questions like this is how i found out that one of the allowed characters in names in my country is ÿ, which is fine in Latin-1 but in 7-bit ASCII is DEL.
I have an apostrophe and it's super annoying as some companies see it as a SQL injection hack and sanitize it.
So I've received ID with Mc%20dole or they add a space in it. Or I'll get a work email with an apostrophe but I cant use it anywhere because sites have it disabled. And I've missed my flight because I changed my ticket once to add the apostrophe and the system just broke at the gate.
Worse yet many flight companies have "you will not be able to board if your ID doesn't exactly reflect your details" but their form doesn't allow it. Even most forms for card payments don't allow it even though it's the name on my card.
Na, names are about pronunciation (how you call someone). Written letters are an approximation of that. You can't pronounce a newline, so there's that.
There are a frightening number of systems that don't allow "-", which isn't even an edge case. A lot of people - mostly women - hyphenate their last names on marriage, rather than throw their old name away. My wife did. She legally changed her name when she came of age, and when we met and married years later she said, "I paid for money for my name; I'm not letting it go." (Note: I wasn't pressuring her to take my name.) So she hyphenated it, and has come to regret the decision. She says she should have switched, or not, but the hyphen causes problems everywhere. It's not a legal character in a lot of systems, including some government systems.
A line break is a non-printable character. So it would only work in the scope of electronic storage. The minute it hits other media, the line break character is subject to how that media handles its presence, and then it is lost permanently from that step forward.
Plus, many input forms make use of validation that will just trim anything that isn’t a character or number, removing the line break character.
I really can't even begin to properly explain this because it's just so many layers of intuition. No, you absolutely cannot have a line break in your name. That's not a letter. That said, I'm fully prepared for someone to give me an example of some writing system that uses line breaks for unique purposes apart from spaces.