It’s not uncommon in the west either and it’s weird how much we ignored it in software e.g. “I’m John Q. Smith the Third but call me John” or “May I call you j-dog?”
> There are people who wish to be called by their full name. They may find it jarring to be addressed by just one piece of their name.
There’s also the issue of honorifics which you usually can’t get from names alone, as well as titles (whether professional or nobility) which can be very important to people’s identity.
Is there a similar sentiment among older people in parts of Asia?
Same goes with names: missing accents, umlauts, special characters, wrong ordering, wrong titles/gender etc. is aggravating. And customers do complain.
German companies often spend a non-trivial amount on software engineering time and data cleanup to get these things right. And the French take it even more seriously.
Non-native speakers may not understand it, but that's no excuse and you will alienate people and customers. Even younger generations notice.
And just fyi I'm a millennial and per "Du" with everyone I know. Not my telco provider though.
My ideal message from my telco would be this one line:
"Hi Leo, your monthly bill for <phone number> is available. Get it here: <url>"
[1] https://www.abendblatt.de/wirtschaft/article233949947/firmen...
Knowing what name to display isn't always enough - you also need to think about how the rest of the text around it should be translated to match. For German, the safe answer is still third-person plural Sie, unless you're absolutely certain your audience are all children, and missing that distinction might be taken by your audience as either that you're trying to be creepily over-familiar, or that you think they're children.
A sibling comment says that "Du" (second-person familiar) for business is becoming more common, and while that's true, I would NOT recommend using it without a good knowledge of German culture and your specific audience.
Depending on the level of formality you might need to conjugate verbs slightly differently or use vocabulary that's considered more respectful. From my experience the younger generation is more relaxed about the rules, but Japan as a whole is pretty slow to change.
[1] https://www.wasabi-jpn.com/japanese-lessons/how-to-write-ema...
In France the etiquette requires that you ask permission to use "Tu", and there are people who refuse you the right (it basically signals that they see you as a servant).
It's common to hear "How should I address you?" This is equivalent to the people here suggesting a "nickname" field (good idea).
There are people with only one name. Don't make them double it (Ananda Ananda).
There are people with several given names. But they may only want to be called by the first, or the first two, or the last.
There are people who wish to be called by their full name. They may find it jarring to be addressed by just one piece of their name.
Finally there are people who go by a name which is not part of their legal name at all. Short forms like Bob instead of Robert, but also freeform names for various reasons, perhaps the most sensitive being that some government official may have determined their legal name contrary to their own wishes. Imagine your mother named you Sue but someone decided that must be short for Susan and put that on your government documents.
Related: when people want to show which part of their name is the family name, they either make it all uppercase or underline it. You can see this on some CVs but it happens elsewhere too when a full name is going to be read by people who don't know the addressee.