Do men know a woman's limited time to have kids?

I've head too many stories of men stringing along women, purposely wasting our time. I have a question. Do men actually have an understanding of a woman's biology and limited time to have kids?
Do they know or are they really that clueless when they say ''not yet, give me more time, 2-5 years more''? Are you guys aware we don't have that unlimited time you have?
Do men know a woman's limited time to have kids?
Post Opinion