Do you often pay large amounts in banknotes? The government intends to ban cash payments for amounts over €3,000. Read more.
from the article:
They are not allowed to avoid this amount by making several smaller payments in banknotes.
What does that mean for salaries? Every salary payment can be seen as a part of an annual income. I would demand more frequent pay days just to get some freedom back -- to be free from forced banking. Of course I would say the paychecks are not part of a whole payment but each are a whole payment for a specific amount of labor rendered.
By cash i think they mean physcial money. You could still pay for a $5000 purchase with your debit/credit, just not in physical cash. As for your paychecks question, the vast majority of people get paid via a cheque or direct deposits. Very few people are getting paid out in physical cash and the ones that are probably make less than $3000 a pay period and may already be breaking other finnancial laws.