@ThunderStorms he should have abstained as well then shouldn't he?
There's one thing you're right about, a man carrying a child is a biological impossibility.
He cannot take the child and gestate it himself.
He cannot take the morning sickness, he cannot take the pain, the stretch marks, the swollen feet, the restricted diet, the cravings, the horrible hormonal mood swings. He will not have to buy maternity clothes. He will not have to pay for check ups and scans. He won't have to disrupt his education to attend appointments and have the child. He cannot take her exams for her. He cannot attend classes for her and take notes. He cannot apply to college for her, or attend her interviews in her place.
He will not have to take the pain and trauma of childbirth. He cannot take the risk of injury, disability, or even death that comes with childbirth. He will not have to take the risk of having to have an episiotomy, or the risk of a prolapse, or incontinence, or the myriad other ways childbirth can adversely affect a woman's body. He cannot take away the post natal depression, or the stigma of being a single mother at 16. He cannot give her back her pre-baby body and the 9 months she will have lost of being a normal teenager.
But sure, she could be a surrogate and just hand the baby over. Because as far as you're concerned, only the man and the baby matter, right?