"No matter what the situation..." So does that also include situations where the father is abusing the mother? Whether it be physical abuse or emotional abuse?
No, it is not. It has been shown time and time again that many men cannot help themselves but to use a child to try and essentially control the mother. Having the father's name on the birth certificate opens the mother up to being controlled. Even in cases where the mother assumes it would never happen to her.
Having an individual being able to control where you are able to move to, for example, is not helpful. Then having to go through the severe stress of having to attend court simply due to wanting/needing to move for a promotion at work, for example, or to receive more support from your family, is not helpful. Even then, you could end up in the position where the court decides you are not allowed to do so. Yet, if the father's name was not down on the birth certificate, then the likelihood is that this would not be an issue.
Having issues with being able to take holidays abroad is another example of problems which are commonly caused due to the father's name being on the birth certificate. If your child has a different surname to you, then expect some additional difficulties on top of this. Imagine being unable to do so unless you have someone else's permission. Think about what if you are unable to easily locate this individual. Again, that would then result in the only option being available to you is going to court to try and resolve this.
There are many more examples I could give. Women really need to take this on board before deciding to add the father or giving into pressure from the father about this matter. Even a male who appears to be behaving himself currently does not make you exempt from this ever happening to you. Men can, and do, behave in terrible ways. If this was not the case, then there would not be any threads on here, there would be no domestic violence from male perps and everyone would be in some fantasy world (as it would not be the case without that).
It is all too easy for someone who has never encountered and/or experienced any of these issues/situations to claim that the father's name should be added. Some even continue to claim this despite it being pointed out to them which is somewhat irresponsible. It could easily lead to a woman listening to such advice and then finding herself being controlled terribly for the next eighteen years. Just because someone assumes the father would never behave in such a way does not mean he wouldn't.