Gold: has intrinsic value of technical and artistic usefulness, easily evaluated for purity/quantity, has a physically limited supply, people tend to want it for what it is and what it represents.
Gold certificate dollar: represents a quantity of actual gold, simplifying transactions, may be exchanged for real thing on demand.
Paper (modern) dollar: has no intrinsic value, is not durable, no inherent limitation in supply (gov't can print more, others can make adequate duplicates), wanted only for what it represents, value is what two people agree it represents.
Virtual (digital) dollar: number in a computer, has no intrinsic existance, is transient, quantity controlled only by frequent auditing, amounts to verbal agreement of exchange of wealth.
Society is nearly cashless now. Most cash is drawn from ATMs just before use, allowing virtual dollars brief existance in paper dollar applications, and then returned to the ATM to complete the virtual dollar transaction.
How do I like our monetary system? WHAT monetary system? There is no money. Other than a few dollars in your pocket or under your mattress, you have no money. We now run on computer-facilitated verbal agreements: "If I had $5, I'd give it to you, so let's just agree verbally that my bank should give you my $5 that it would otherwise owe me on demand." Paper money represented real things, available on demand and stored for your convenience. Now we have byte money representing paper money, available on demand and stored for your convenience...but that paper money in turn represents nothing.
With gold/silver/whatever coin, when the music stopped you at least had some useful metals in known quantities. Now when the music stops, you have a long number useful for nothing.