I think it’s people who by “control”, mean able to hide where their money is coming from, or ion other words mean control is the ability to cheat.
It’s 100% because they want it to be traceable. I’m not sure, but I think I’m OK with that. Although it will make it hard to hide away a bit of money for a rainy day, when you are on social benefits. As it is, if you have more than $12k USD, you have to spend the above first, before getting any benefits.
That may be a factor too, making it harder to cheat on social benefits. 12k doesn’t get you far if you need a roof repaired. But at least the value of a house isn’t counted.