Think on the consequences of this.

By the way, in the AirBnB case, you can always have police pretending to rent flats to get the tax offenders. This would protect privacy and scare offenders.

This is despite bank secrecy laws (which only apply in case of tax evasion, but not - fraud).

A big reason is simpleness of the tax declaration, transparency and - overall fairness of the tax code. Even though it's a rather progressive system.

It's a matter of incentives for the individuals, not culture.

Do inform yourself a bit on the topic. It's way more complex than you think.

http://www.nytimes.com/2011/12/25/world/europe/italy-tries-t...

http://www.nytimes.com/2013/01/28/world/europe/italys-new-to...

http://online.wsj.com/article/SB1000142405270230375390457745...

https://www.cia.gov/library/publications/the-world-factbook/...

There are people that do not pay taxes, but they are compensated by those who pay. The net effect is actually that the tax burden vs GDP in Italy is higher than in places like, say, Germany.

The reason Italy has a high public debt is not tax evasion, is excessive public spending. The reason many business are failing is not tax evasion, is a crazy tax law that kills many to reward few. That is why many Italian hate taxes, because they are unjust.

You wanted to say "some people", since a third of the people don't pay them (see the Uif research published in 2012). It's a huge number.

Do inform yourself a bit on the topic. It's way more easier than you think.

At least I've seen in a documentary where Italians tell they choose not to pay taxes. If there is a law to pay taxes and people can choose not to pay taxes, then some sort of enforcement has to be done. Especially because Italy's finances are in ruins and as an EU citizen I think it is Italians' responsibility to step up first, not EUs.