"I need my window repaired but I don't know how to do it"
"I can repair windows but I need someone to help my sick dog"
"I can diagnose animals but I need someone to translate Spanish".
"I can translate Spanish but I need someone to deliver this package "
They're not going to all line up and do a series of trades. Someone's going to be like "what if I give you a token, and we all agree that token is worth work? Then you can take that token to anyone*
Nobody is advocating for keeping the current system and simply removing the concept of money. Money is of course a necessity of the current system, but need not be if the system itself is changed.
The person I replied to literally said "the rest by bartering or agreement". I guess you could stir money is an agreement but that's not what I took from their message
Also how are you going to solve the scenario I provided?
I don't understand how that's going to solve the scenario I described.
There's stuff I can do but don't want to. There's stuff I would do in exchange for something. But once that "something" isn't what you have, the reasons for currency become apparent.
So if someone asks me to do a thing for them, I can only do it when working in an official professional capacity, or through unofficial favor exchanges?