Multiple outlets report that some UK passport holders are being caught out by the EU’s “10-year rule,” which affects entry into Schengen-area countries. Under the rule, a passport must have been issued within the previous 10 years and still be valid for travel, otherwise airlines can refuse boarding. Reporting says the deadline applies to British citizens as a result of post‑Brexit arrangements, with the rule taking effect for UK travellers in January 2021. As a result, passengers who believe their passports are still usable are sometimes turned away at airports when their documents do not meet the timing requirement. The coverage also notes that the consequences can include losing money, including costs related to flights or disrupted travel plans, with some reports citing losses of up to around £700. The outlets emphasise that travellers may be unaware of the specific issuance-date requirement and advises checking passport issue dates and remaining validity before departure to avoid being denied boarding.