There aren't going to be any packages. And as people have already learned, just because they offered something in a 'package' doesn't mean they will honor it in a couple years.
As for the age range...we have a fairly wide range, though it does skew a bit to the over 45 group. Part of it is because the younger people leave quicker. Part of it is because the older you are the more you have to lose, so you're more likely to shelter in place.
Also, think about it, people in mid to upper 50s are the last group of people who had a fair shot at working in the same place for their entire career. That used to be a badge of honor of sorts; it used to imply that you were loyal, hard-working, and good at what you did, particularly in white collar positions. There was almost a mutual respect between employee and employer. Now , because that type of career seems unfathomable, younger folks think it can't possibly be for any other reason than the older person must be an stupid id--t who couldn't get a job anywhere else.