We all know when tax time is. We all know to expect it. We all willingly submit to it either by way of deductions from our paychecks or sending in a check at the end of the tax year.
We all also assume that when we stop by the ATM Monday morning to grab $20 on the way to work so we have some money for lunch, that $20 will be there and not have been "levied" away because our government is in debt and decided randomly to take that money directly out of all of our bank accouunts.
Fair or not isn't the issue. It's trust in banks that is the issue.
For the economically undereducated, let me give you a short primer.
Banks 101: People put money in banks. Banks take in lots of money, and very little of it at any given time is withdrawn. This means banks have what we call liquidity: lots of spare cash laying around. Banks want this money to multiply--it's how they make money. The best way to do this is to loan it out with interest. When you take out a loan to buy a car, start a business, or buy a home, this is essentially where that money is coming from. Banks can afford to do this because at any given point in time, they can expect to only need x% of their cash handy to give out to banking customers.
These loans drive the economy. Credit is what makes the economic world go round. Just to give you an idea of what the world looks like without credit, take a look at most of the countries in sub-Saharan Africa.
Now assume that tomorrow, something happens to cause everyone to panic and want to take their money out of the banks. Banks have x% (called a reserve ratio incidentally, and is a tool of monetary policy that can impact inflation/economic growth, but that's Banks 103) on hand, but if people are rushing in to take out 100% of their holdings, the banks WILL fall short very quickly. They simply do not hold that kind of liquid--it would be a losing venture for them. They'd not have any source of revenue to keep the lights on if they did.
So what happens when everyone makes a run on the banks? The banks run out of money long before everyone gets their money out. The banks fail.
One bank failing is bad. All of the banks failing is utterly catastrophic to an economy. Imagine if tomorrow, all lending in your country stopped. All of it. As in, the only way you could buy something is in cash. Rent, bills, groceries, a new car, a new house...all in cash. Cash or go home. Now imagine that you didn't get to the bank to get your money out before it collapsed under the pressure of the panic.
You start to get the picture.
To quote a friend, the worst case scenario of something like this "is definitely a Mad Max scenario". Obviously, that's a worst case, but it seriously cannot be understated. They are playing with fire. In a gunpowder factory. On a day with high heat and low humidity.