Just because something is abstract doesn’t mean that it is fictional. Money is made up and essentially an arbitrary placeholder for the general concept of value, but money isn’t a required part of an economic system. Economic interactions would occur whether or not a particular society has money (e.g. a pure barter system is still an economy).
On the plus side, they feel fictional because they’re completely made up.
Just because something is abstract doesn’t mean that it is fictional. Money is made up and essentially an arbitrary placeholder for the general concept of value, but money isn’t a required part of an economic system. Economic interactions would occur whether or not a particular society has money (e.g. a pure barter system is still an economy).