But what about those cases where father is contacted after birth?
That is a good question that definitely needs addressing. And as mentioned, earlier abortions are safer. So fine, I think it would be fair to give a man ~ 1 month of time to decide (and to receive correspondence, etc.) after notification.
If your notification comes at 27 weeks, and a month is too long to hear back before you have to make an abortion decision, then tough luck... don't be irresponsible and wait 5 months to inform the father. Inform at 1 month or right when you find out, and you can abort the next day if you really want (or earlier!), but you can do so as early as 2 months WITH full knowledge of the financial ramifications, guaranteed. Still quite early and safe.
If you wait until after birth? He still gets 1 month to decide.
If a woman gets an abortion then how does that affect either of them financially or legally (necessitating this law)? Is there some weird law requiring fathers to pay for half the operation? If not, how does a dead baby affect the father?
There's a potential argument to be made for damages to the father of aborting his fetus, but this is sort of a separate issue, and a more provocative one, and wouldn't have to be decided at the same time as the idea in the OP.
If you keep the rest of the system as-is, this is bad for the child. The child support money would have to come from somewhere else. I'd support this if that problem was solved, which I'm sure there are numerous ways to do.
The money would just come from welfare,
just like it does if a woman decides to keep a baby knowing that neither parent can pay for it of the father is dead or whatever.Tax payers are already willing to support welfare for women who decide to keep a fetus, even if financially unaccounted for, in the name of rights for women.
Tax payers should also therefore be obligated to support welfare when men decide to not support a baby, even if otherwise financially unaccounted for, in the name of rights for men.
Being okay with one but not the other suggests women's rights are more important, which is unjust.