can you give a scenario when a man does not have to pay child support?
When he was tricked into it for example.
Consider a hypothetical one-night stand where a priori understanding and agreement is such that it's just sex and that children are out of the question. Let's go a step further and say that the woman promises that she is taking the pill and that even if she gets pregnant anyway that she'll take a morning after pill and that even if that doesn't work, she'll abort.
Then afterwards, it turns out she lied about everything and actually just wanted to get pregnant and bag a rich guy to do it and trick him to be part of it.
In such scenario, I don't think the man has any responsibility.
Let's exaggerate even further - and this is a true story that happened in the UK on multiple occasions.
Single women with a ticking biological clock wishing to have a baby and don't care about not having a man.
So they go to nightclubs and pick up a guy. They have a one-night stand and use a condom. Upon finishing, she says she is going to take a shower and takes the used condom with here to "throw it away".
Yet instead of throwing it away, she takes a syringe to get the sperm out of the condom and squirts it into herself.
Again in such a scenario, I don't the man has any responsibility.
He can off course choose to be involved. But he can't be forced.
In fact, especially in the second example, I feel the man even has grounds to sue the woman and get paid himself.