WAWWD , (We Are What We Do) is a social change group who have produced a book of 30 actions which, if carried out by a million people, would change the world. It is easy to be dismissive of the book because of its title. However I balance the boring old fart persona with the boring old obsessive persona so I looked at the site in detail and the surprisingly comprehensive newspaper article that reported it here.
I suspected that texting was chosen to grab the headlines but I was frustrated that I couldn't find a full list of the remaining actions. The two that were reported "Don't start a war" and "walk your Dad" certainly sound more world changing than texting.
Should you wish to teach your Granny to text I have the following JustEnoughTechnology advice - don't.
Firstly you can't use the family emergency as a reason for learning to text. If it is a true emergency she would expect you to sort it out directly with the emergency services and if you think that running out of petrol, or cash, is an emergency she probably won't respond. Secondly, unless you send texts with correct spelling, punctuation and grammar your mother will get a good telling off. The final point is that talking is much more efficient than texting and grannies have sorted out how to be efficient and effective probably around the time you were born.