Families told to make two urgent checks or face missing out on holidays

British holidaymakers are still getting caught out by travel requirements that have now been in place for more than six years (Picture: Getty Images)With tens of millions of British holidaymakers prepping to jet off for sunnier climes this summer, there are one or two things people might want to triple-check before catching their flights, trains and ferries. A whopping 13.6 million holidaymakers are expected to set off from the UK this year, with airlines like Jet2, TUI and easyJet ramping