The question here if you're also willing to raise it outside (or after) marriage if it came from cheating that you weren't aware of until the end of your marriage.

It really comes down to personal views, and as anything it can be very complicated very fast. That's in my opinion the very reason divorce go through trial, as everyone has a different opinion on what the question is.

For instance if you raised a kid for 15 years, divorce for unrelated reasons (ex: repetitive adultery), but take the opportunity to have paternity checked, are you less of a parent of this kid than his biological father ? I'd suppose there's a variety of answers depending on each one's walk of life.

I believe that I wouldn't change your legal relationship and, therefore, duties.

I'm not a big fan either, but that's how it is for now...

My point wasn't about the legal situation, but what seems right.

*it wouldn't

Too late to edit, damn it