I think it's natural to look for trends when something like this happen, but this was one individual making a decision that is best for him.
It would be the same as looking for a trend of quarterbacks playing forever because that's what Tom Brady wants to do.
It does seem to me that more young players -- not quarterbacks in general -- are willing to look ahead and see how the long-term ramifications of playing such a brutal game are going to change their lifestyles down the line.
Some ignore that and deal with it when it gets there.
Some see it and say they know what they're in for.
But more are seeing it and saying, hey, I'm rich, I want to have a better quality of life, so I'm going to leave on my own terms.
The life expectancy of a pro football career is so short, it's startling to see guys end it on their own, but when a player like Luck does it, you know more are thinking about it.
Not everyone has the financial cushion Luck does, though.
Many guys are playing for that kind of money.