Why do you have to work for money while they can create it? That seems to be a fundamental thing nobody can adequately answer - let alone control issues.
Originally only gold and silver were money. You could trade for money or dig it out of the ground. If you brought your gold to a government mint it would be made into coins of known purity and weight. Government coins were a trusted unit for trade. However, gold money limits what a government can spend due to a natural physical limit on supply. The primary benefit of gold money is nobody can conjure 100,000 tonnes ($6.43T) out of thin air for their own benefit. That puts the government on more equal footing with the people.
Early taxes like the tithe were also not money-based.
The luxury space communism idea where everyone just gets infinite money unfortunately has no evidence it'd work, because the farmers wouldn't believe you. The earlier systems, historical communism and feudalism, worked without money because you'd just have the farmers killed if they complained, but obviously that was problematic.
On the other hand, most sci-fi of this nature also has semi-military structures and the military is the ultimate form of communism.
1. your idea probably isn't post-scarcity, you've just forgotten that the goods/services you want to automate have inputs themselves that still cost something.
2. if robots are smart enough to produce everything for us, they're probably human-level intelligent, could be customers instead of producers themselves, and so you've actually rediscovered slavery.