If a man fails to face the emotional aftermath of losing his child to abortion within the first couple of months, he will often suppress it for many years, making it more difficult to face. Many men acknowledge various problems in their life without connecting them to a previous abortion decision. Society makes it doubly tough for men to deal with the aftermath of abortion. Secondly, men are often taught as children that it is less than manly to show weakness or cry. As a result, men have no societal incentive to realistically deal with their abortion decision.
Men tend to be compartmental thinkers.
A vast majority of them have bought into the false rhetoric that abortion is solely a woman's decision. Talking to them about PAS will only enforce their belief that this is something that affects only women. A man may be more open to talking about and dealing with the loss of his child in the context of abortion. That loss has affected him dramatically. However, he may not yet be aware that it is the root-cause of his problems.