I'm going on holiday with my 2yo DS to Tenerife in November. DS has my XPs surname, not mine. I've been told that as DS and I have different surnames on our passports, I will need to travel with a copy of his birth certificate to prove that I am his mother.
In theory it's not a requirement - but in practice it's being asked for more and more (happened to me for the first time last year). So I'd say yes, it's worth doing to avoid stress and embuggeration each time you cross a border until your children are big enough to answer 'Of course that's Mummy!'.
Thanks, I was thinking I should take it anyway to be on the safe side. I've travelled with DS before and not been asked for it and to be honest I'd never even heard of needing it until it was mentioned to me the other day.
Blimey, I have a different surname to DD and the only time we've had problems was when me and DD drove to Dubai and got stopped at the border. the men on the border post phoned DH and he jokingly said he hadn't given permission for me to take DD away . She was only about 5 months old so couldn't say I was her mum. It took about two hours in the boiling sun before that was resolved. I would do like fraktious says, take a letter from your exP.