Why do you think there are so many gray hairs working bagging groceries?
I agree that many will not retire comfortably...many won't be able to retire until they are forced to do so by health reasons...or will retire but have to continue to work part time to make ends meet.
A lot depends on what you have been used to making and need to be "comfortable". Is your home paid for and in good repair? Will you require nursing care at some point?
For a couple with a $100K combined income a million at a 4% withdrawal rate is only going to produce $40K/yr...maybe their Soc Security provides another $25-35K/yr depending on when they start taking it. That's a 30% cut in income.
True in many cases, but certainly not all. Pretty much everyone I used to work with either has or has had a part time job, but not because they NEEDED the money, but because that they liked getting out and having something to go to. Hell, I retired at 56 two years ago, and in that time I've had 4 part time jobs, and turned two others down that I would have liked to have had, but didn't like the hours. I liked those jobs, but one was seasonal, one turned from a perfect 3 days a week into a 4-5 days a week, and the other I just left for a better job with the company I retired from. I spent the last 5 months working part time for the company I retired from and loved it. I could basically name the days and hours I wanted to work. Will probably do that again next year and may pick up something in between if it looks like something I might enjoy. We're looking for a condo in Florida to do the snowbird thing for a few years and then maybe move permanently. If we find a place, I'll look for something there, like maybe a part time job in a marina. Just something to get me out and meet new people.
My advice for anyone wanting to retire....
* Put as much as you possibly can into a 401K
* Live within your means.
* Have your home, vehicle(s) and pretty much everything else paid off before you retire.
My wife and I were very fortunate. We both have pensions, had 401K's that we put a lot into, our kids have been out and gainfully employed for 12+ years, and we didn't owe anything when we retired. We don't live extravagantly, but we do things we like to do.