But where does it end? You say that they should have the chance even if it goes no further.
But even on this thread we have posters who are resentful that relatives’ long-lost family aren’t interested in pursuing relationships after they’ve been tracked down.
So while to you saying no to a DNA test might be cruel, to someone else it could be considered cruel to not explore the relationship further, to not get to know each other, to not continue to correspond.
At the end of the day it’s a personal choice, and nobody owes anyone anything.
I certainly would never agree to do a DNA test with anyone. and as far as I was concerned I wouldn’t consider someone popping up out of the woodwork to be a sibling, even if they were so by blood. I didn’t have a relationship with them before, therefore they would be nothing to me. And I don’t owe them that.
nobody is wrong for not wanting to pursue such contact. Certainly not for not wanting to do DNA tests to prove paternity etc.
Interestingly I have a different example of this. My DP isn’t adopted but he grew up in foster care. But he and his three siblings were separated, one was removed at birth.
As adults they did resume contact, and he had contact with two of them. But the other one wants nothing to do with them, and they have all resented that fact. And yet that is his choice. Why shouldn’t it be? Why should there be expectation there?