Oh right so it's up to women to educate men then. About basic biological fact they would have learnt at school.
I am certain I did not learn about human reproductive age quality windows at school, male or female. I suppose I picked that knowledge up later, along with the knowledge of 40 being the time of declining fertility and rising reproductive problems for men, from doctors trumpeting it through the media to anyone who would give them airtime.
It's up to women to communicate this in a specific way that a man will then actually take her feelings and situation into account.
Its up to a person to attempt to communicate in a way that that their partner will hear and its up to their partner to listen and attempt to understand. Well and good, in theory, and some people can communicate, listen and understand well. Sadly others do only some of them, and poorly.
And if he still doesn't? Is it her fault? Or is it only her fault if she communicates this educational lesson out of the parameters you've set?
How could it be her fault? What I set out is a simple message any man would hear, short of a drooling Neanderthal incapable of stringing a sentence together. In short, keep in simple and relate it to them because men are dumb. But establishing clarity of delivery in a message to a partner has no bearing on what that partner may do about it, its only an affirmation that they received it loud and clear.
For some men that MIGHT move them past mouthing off to their mates at the pub “The missus always moans on and on about us having kids” to thinking that it isn’t just something that his missus WANTS and NAGS about, something that he can get around to supplying at his leisure later- like that new coffee table, but a serious choice he needs to make NOW before TIME takes away his ability to choose at all.