Isn't it unfair that men have no choice in parenthood, while women do?

If a woman gets pregnant, she has full control over whether to keep or abort the baby. If she chooses abortion, she's often praised for "making the right choice for herself." But if she keeps the baby, she alone decides that the man now has to provide for it, whether he wanted the child or not.

Why is it that men have no legal way to opt out of parenthood, while women can? If a woman wants to keep the child, shouldn’t she be the one responsible for it? Why is a man forced to "step up" and pay child support for a decision that wasn’t his?

It just seems like a double standard—if women can choose to walk away from parenthood, why can’t men?