I don't like smartphones for precisely this reason, now you are supposed to always be connected and be ready to take action at any moments notice, this is why I dont have a smartphone and my boss hates me for it.
well let's be real, smart phones have helped people out in a lot of ways. but as we all know technology has its negative and positive effects. it all would depend now in the person using it. for me, I tend to practice restraint of using it if its not really important or when i'm with other people.