I fully believe that single people and couples with no children living in inexpensive parts of the country can live on the minimal amounts stated. And others may be able to do it in more expensive areas by practicing extreme frugality or paying off their homes and other debts extremely early. Whether others want to live that way is a personal decision. I do not. There are many publications touting the benefits of being extremely frugal and give many practical examples. If you don't have the income, frugal living becomes a matter of necessity
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I grew up is a 2 bedroom apartment in a nice neighborhood in NYC. My parents were blue collar never made more that about $5 to 7K a year when I was growing up. This was during the 50's and 60's. We paid $60 a month in rent, a few dollars for utilities and heat and water were included (one window A/C that was used sparingly - we had an odd device called a screen in the windows). No car - lots of great, low cost public transit. I went to public schools all the way through college, which was essentially free for residents. We had a TV and pretty much everything else that makes life nice. Of course, I had no idea what suburban living in a big house was and didn't know what I was missing (if anything), so I was a happy kid.
For the most part, I don't believe that type of life is available in most metropolitan areas any more. Even in very low cost cities, rents are $800 or more for a 2 bedroom apartment (not NYC, SF, LA, etc.). It's less in run down and dangerous neighborhoods, but I doubt anyone who can afford not to live there would.
I really don't care how others want to live. If they have a desire to be like Jack Benny or Scrooge McDuck and run their hands through their piles of dollars, that's fine with me. If their only goal in life is to retire by 45, that's also fine. For me, life is too short to deny myself things that I would like to have or do and that I can afford. I'm not a believer in the Protestant work ethic of working for the sake of it, nor do I feel that it's good to become so focused on saving money that it becomes an end in and of itself. No 25 year old cars here - 15 is the oldest and 10 is the minimum before replacement
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