I'm a huge privacy advocate, but on this issue I'm with the regulators. 3k EUR is plenty. More than the harmonized monthly average salary of the EU, in fact, which sits at below 2,200 EUR (source).
So people who value their privacy that much can easily receive their salary in cash and take care about their daily expenses without compromising anything.
For the odd purchase beyond that, the integrity of our society prevails. Money laundering and tax evasion are a major concerns everywhere in the world. Your advocacy pro-privacy actively harms honest taxpayers and governing bodies.