Women's trust is irrelevant to men's contraception

Tangental to this:

One thing I've frequently seen mentioned in discussions about the possibility of a male birth control pill is that it wouldn't fly because women wouldn't trust their partners to take the pill.

The more I think about it, the less I can see how this is at all relevant.

If my partner doesn't want children, he takes his pill. If I don't trust him to take his pill, I take my pill. Then we're doubly protected. Nothing wrong with that.

I've recently come to the realization that I still want to be sterilized even if my partner has been sterilized. But that doesn't mean my partner shouldn't get sterilized too if that's what he wants.

I know many people make these decisions as a couple and operate under the assumption that if between the two of them they can't make a baby, they're fine. And it is entirely their right to do so. But that doesn't mean that people who happen to be coupled shouldn't also be allowed to take measures to make sure that they, personally, don't sprog.

Some people will say that making these decisions as an individual implies that you're going to cheat. (Personally, I was thinking more along the lines that I could get raped.) But even if you are going to cheat, isn't it better to avoid making unwanted children while doing so? Best-case scenario: there's an affair, you reconcile and decide to move forward, if there are no children you can leave it completely behind you. Worst-case scenario: you DTMFA, there aren't any sprog requiring child support payments to take away from your alimony.