Dp and I are planning to get married, very quietly, and the registrar said we would have to re-register our children so they were each 'child of a marriage'. What difference does this really make?? They both have dp's surname and he already has parental responsibility for them as well as me, which were the only two things I thought might matter. I have looked on the 'married or not' website and others and although I found another reference saying children should be re-registered it didn't offer any explanation of why children should be 'child of a marriage' or an example of how they might be treated differently if not.
I am aware that English law is far from simple, and so dp and I will probably apply for the correction/re-registering just in case it might disadvantage our children in some future scenario we can't quite imagine. However I would appreciate anyone with knowledge of family law illustrating how this could possibly come about.