Long ago, in the literary world far far before Star Wars, Star Trek, or any of that stuff, was an author by the name of Lester del Ray, and I read the following book and thought it was one of the greatest novels ever. If you can find a copy, it is WELL worth reading:

It is a serious book, and it addressed MANY of these issues, and that was 1965. Hint: have some Kleenex.
Del Rey is the book company in charge of Lucas Books, which now makes Star Wars novels (used to be Bantam Spectra--which could also have been del Rey).* So there is a bit of a connection.
* All of the Lucasbooks except for those by Timothy Zahn figuratively stink, and the vast majority of those made under Bantam Spectra were decent.