What type of personal identification is not acceptable for Ryanair flights?

The choice identifying expired identification or documents not issued by government authorities is the correct answer because airlines, including Ryanair, require valid and up-to-date forms of personal identification for travel. Valid identification serves to confirm a passenger’s identity, and if that identification is expired, it no longer fulfills this requirement. Similarly, documents not issued by government authorities lack the credibility and security that official identification provides, rendering them unacceptable for securing a boarding pass or undergoing security checks.

Acceptable forms of identification are usually current and official documents, such as passports or state-issued IDs, which demonstrate verification of identity and crossing of borders. While school identification cards and witness statements may carry some information about a person’s identity, they do not meet the stringent requirements set by airlines for acceptable travel documentation. School IDs are not universally recognized as valid forms of identification for air travel, making them insufficient for the necessity of confirming a passenger’s identity.