step children changing surname - and passport?

[kunash]

Hi, I am married with two step children. we live in the UK. my wife has my surname, my step children have their dad's name. my wife has full parental responsibility for both her children.

my two step children and my wife and i, would like us all to have my surname.

from what I know of UK law this could be very difficult to do in England - they are 12 and 10.

this year we will be going to Thailand for a holiday.

I have booked the air tickets.

when we are in Thailand, is it possible we can go to the ampur, where my wife will change their surnames to mine, and change their id cards, showing my surname. we wont touch the passports - leaving them in the old name.

when we are back in the uk, we will ask for new passports at the embassy, showing the name change papers.

does this sound ok? just asking for opinions and advice, thank you

[Mario2008]

You can try to do it, it will depend on the amphur if they will allow it.