The key point I was making is that while things are more or less freely available. There really is no such thing as a free lunch. You do have to work to obtain it. You got the point, mostly. Just a bit backwards to my intention.
I really don't understand the concept your trying to describe. I view working for someone else' gain to be more akin to voluntary slavery. I'm on this world for myself and my family, not for someone's Lamborghini.
Many feel that by working for others (like with a job) is the only way to achieve success. And sure some measure can be obtained, depending on the method of payment and the arrangement of the job itself. However, bartering eggs for grain is in a sense working for someone but is on the scale of an equitable return. Because you are producing more than you need in exchange for not producing grain.
What if I don't like grain and everything I do like I can make enough for my family? What if I can provide every basic need for my entire family on just a mere acre of land? I don't need grain or beef to live a very healthy life. Nor do I want grain or beef as they aren't healthy at all!

The catch is not to become too dependent on others such as having people gather all your eggs in exchange for some eggs and some grain. The danger here is two fold. You could become to greedy and not give as much eggs or grain or that your gathers could leave you in the lurch in search of a better deal, leaving you with far less than you could have done.
This scenario seems more about purposefully not producing one or more things that you require while over producing other things. That's silly.
The problem of trying to do it all alone is that your time between different things becomes so divided that you end up with little at all in the end. One of the main reasons that the solo survivalist is harder than having a small group of like minded friends. Bob can fish, while John gathers wild edibles and Tim tends the garden and works on bettering the shelters/huts. Bob may fail, and Tim produces nothing today until harvest.
I've never had to work very hard to tend my own crops, gather my own wild edibles or collect my own rainwater. Why do people think it's such a hard job? I hardly have to do a thing!
Doing that alone means having to tend the garden on an empty stomach, grabbing a few edibles along the way to the fishing spot. Repairs to the shelter will only come if fishing is successful early.
So you don't believe in food storage?
All currency is labor at a set and agreed value of barter. Eggs or dollars, it is all the same, except you can't live on dollars alone.
I agree, one can't live on illusory beliefs alone, nor should one even bother attempting to. I need food, water and shelter, not paper money. Yet, why are we allowing ourselves to acquire paper money that holds no real value instead of what we really need that is of value? This is part of the point I was trying to make. Our labor should be for our benefit, I would never work for YOU so you can buy a Lamborghini. However, I will work happily for myself to feed and nourish my family.



