Take New Zealand. If Thomas and I lived there instead of here, he'd be obliged to go twice to Sydney to get a new passport. When Amaia was born he'd have been obliged to take her to Sydney to get her first passport... which begs the question - how would he have got her into Australia without a passport or visa to get her first passport?! Family passports aren't synchronized either so a person with two or three kids could end up having to fly back and forth every other year. For instance Amaia's current Danish passport runs out in 2013, Anna's in 2016, Amaia's replacement would run to 2018 and Thomas's would be up in 2021 - that is a fair number of plane trips to the embassy! Someone hasn't thought it through!
Anyway Thomas is so incensed he's started a Facebook group to alert people to the change, and of course to try eventually to pressurize his government into a rethink. I'll keep you updated on the revolution!