Me and DP seem to be going around in circles.
Either way DCs are having DPs surname.
He is from Iceland and they still have patronymic system of surnames.
But obviously that sytem isn't used in the UK.
If we used the 'UK' system, DCs will have his surname.
If we used the Icelandic - patronymic system DCs surnames would be DPfirstname with either sson (for a boy) or dóttir (for a girl) added on to the name.
Basically do you think it would be confusing to have DCs with different surnames to both of us and for siblings of different genders to have diferent surnames?