They already have that. It's very nice that there's also something men can have, both to supplement female birth control and to provide peace of mind for the man. It's not a "one or the other" proposition.
Yeah, why not have two contraceptive methods in play - like a "Plan A" and a "Plan B"? I think you're on the right track here. Many men, including myself, feel pretty equal with their spouse in terms of family planning, but having a Plan B would definitely give me more peace of mind "just in case" haha.
