That's a solid argument for why a male birth control pill won't substitute for a female birth control pill.
But I don't think it needs to in order to succeed. For women, the stakes are higher. For men, they're still high enough. There's no reason both people can't be on the pill. Yes, it's a bit redundant, but when your goal is safety, redundancy is usually good.
"Trust me, babe, you won't get pregnant because I'm on the (male) pill!" is going to be tough sell in the bedroom. But "guys, control your own fate with a once-daily pill!" will be an easy sell in the inevitable TV ads.
But I don't think it needs to in order to succeed. For women, the stakes are higher. For men, they're still high enough. There's no reason both people can't be on the pill. Yes, it's a bit redundant, but when your goal is safety, redundancy is usually good.
"Trust me, babe, you won't get pregnant because I'm on the (male) pill!" is going to be tough sell in the bedroom. But "guys, control your own fate with a once-daily pill!" will be an easy sell in the inevitable TV ads.