so here's your conundrum:

My wife is 35, hard working, self starter, responsible for her own stuff.

Her sister is 32, lazy, will not get a job, and sponges off any family and friends that will let her get away with it.

Both were raised in the same home with a Southern Baptist Minister father and a full time mom.

Same upbringing with good values and work ethic instilled, yet night and day when it comes to carrying their own weight.

If you want to really know about generations of people, read "The Fourth Turning" by Strauss and Howe. It's a great read and explains how what seems new is just the old come back around for another turn.

Most likely, you will be shocked by some of the predictions they made based on historical insight. One of their predictions was that terrorists would fly a plane into a significant building like the world trade center. They made that prediction in 1996 or 1997, but now we're getting away from their look at western society.