Communication savoir-faire adapted to the 21st century

Lost in my thoughts the other day while walking, an epiphany came into my mind. I realised that since everything is modernised in our lives, manners and other savoir-faire rules should be updated and modernised. 

I was wondering, how can we become kinder and more appropriate to this age of technology, when people communicate though e-mails, chat applications and plenty of other means of colourful words exchange? What I mean is that nowadays, we email the person that interviewed us to thank him/her, we send e-wishes to birthdays, name days and other types of celebrations, like getting married, giving birth, getting a new job, getting a new partner or a new apartment. How can we adapt all the “rules” into our daily life in 2016? Is it something that comes naturally to people, are there any rules that people should follow, is it kind to send an automatic answer to an email when you are away, is it ok to screen a call and directly respond with a message that you are not available to talk? These and even more are wandering in my head. 

And I can adapt this to the applications that have the option to send read-reports to the sender. Is this a kind thing to happen if the reading of the message is not followed by an answer? Is it ok for a person to know that someone is online and yet chooses not to answer without sending a message about that? Without setting a different status? What would be the kinder of the two? Not to send read-reports or to send and have an automatic answer if you are not available? Should people choose more wisely their statuses or should they use the safest possible way and then answer whenever they think? 

Are these issues that prove how good the manners of a person are? Are these points that identify if someone knows how to handle people, how someone acts in a more professional way or not? 

And if all the above are true, are they applicable to all the cultures of people? Those who are straight-forward, those who are more diplomatic, those who are strict and those who are friendly? I imagine teaching a child how to be polite to strangers or to school or to show respect and at the same time, explain that you should not keep people waiting for an answer, you should be more direct to the responses you are giving , etc. Is this freaking anyone else out or not? Is that something worth mentioning to a child or you teach by setting a good example? And if the latter is the safest choice, how can you set an example when something is happening in front of a computer or a mobile phone screen and the interaction cannot be seen by a third person? 

:P 

I am dizzy!