The main and most significant benefit of the ETIAS travel authorization system will be strengthening the external borders of the Schengen Area as well as the European Union.
Following the tragic events in some European cities this year (2016), it became evident that a need for stricter measures and better information exchange are created. Apart from security, there is a considerable financial need for implementing such a travel authorization system.
It is officially estimated that over 30m visa-exempt nationals have entered the Schengen Area in 2014. Implementing ETIAS would mean that each non-European traveler will be required to pay between €14 and €60 to receive an ETIAS and enter the Schengen Area. Such a fee per passenger has the potential of bringing over €500m for the European budget yearly.