Elia and sonia ask fay to be the administrator of their will and the guardian of their children if they pass away. fay agrees. fiduciary relationships such as this one:

The answer to this question is involve a high degree of trust and confidence.
For most people, the one that they appointed as guardian is only the one that closest to them to the point that they could trust the life of their own childred for them to take care in case they're dead, such as best friends or really close relatives.

It allowed for things to be produced much more quickly and efficiently 

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.