A few instances from some of the certificates I have.
Father registered all five births, he was their father, but not their mothers husband...someone else was.
Child registered and baptised without a mention that his mother died four days after his birth.
Two from different families where a fathers name and occupation is listed on the birth certificates....I don't think they existed.
One certificate and baptism where the father is noted as deceased.
Two marriage certificates where the father is noted as deceased, but he is actually living with another woman.... No1 on my list, one with five children.
Two where the father is actually deceased, so I guess no one asked them that question.
So we can't believe all we find on official documents.
Ambers