[Tamar1973]

And it is quite possible that: A) the mother doesn’t want to be involved with raising the child B) the mother doesn’t want to be married

Then don't knock her up, sinple.

[DNA.2012]

Simple is this: children are conceived. Some within marriages, some outside of marriages. No one is disputing that for children to be conceived within marriages is the preferable option.

However, when children are conceived outside of marriages, the natural fathers of those children have a right to raise their own children and thus to stop their adoption to random strangers.