I remember my mum in mid 90's spending a small fortune on prepay phone cards while in Italy because there was a very important meeting at work which she couldn't attend in person.
WTF? 
This has never happened to anyone I know. Buying tons of phone cards for the phone box so they can take part in their works meeting whilst on holiday in another country... Really...... ??? 
As I said, people coped before smartphones and the internet, and it's ridiculous that people are so obsessed that they cannot go an HOUR without looking at it, because they just HAVE to check their tweets, FB messages, bank account etc etc.... Even when on holiday with their family. Smartphones are the bane of society IMO.
The world turned just fine before smartphones, people communicated just fine, businesses, banks, shops etc etc all ran successfully, so did schools, colleges, and universities They also all ran fine before the internet!
Yeah the internet is handy to find out information easier, and chat on message forums, and keep in touch a BIT more with relatives and friends far away (or who you just don't see often,) but to suggest it's essential to have a smartphone on holiday is a joke, and is actually quite worrying that people are THAT obsessed!!!