[citation][nom]TA152H[/nom]Women will complain about how nature made them until time ends...[/citation]
What you wrote isn't really relevant to the article, and offers a very limited and incomplete, not to mention sexist, point of view.
A) Many of the older men looking for younger women are probably not interested in having children with them (Though to be fair, that can probably be said about older women looking for younger men).
B) If you want to discuss biological drives and reasoning, well, while men are usually fertile til the day they die, sperm quality can degrade as they get older. These days, the financial benefit of older men for younger women is a result of a long lasting social inequality. Genetically speaking, many desirable traits can be double-edged swords. That's why given a choice, women might prefer a certain type of man as a biological father, while preferring another type to raise children with.
C) Family friendly normally implies something that is also appropriate for those under the age of 18. Usually dating sites are meant for adults only, so technically speaking non of those is "family friendly" in that regard. Dating sites don't necessarily aim for people getting married and having kids, and many of them are giving the full range of choices, for people looking to make new friends, casual sex, dating, marriage etc... So the whole discussion about reproduction is irrelevant.
Bottom line is that sites made specifically for older women/men looking for younger men/women (all adults of-course) should receive the same treatment. The only points against that are rooted in inequality and double standards that sadly still very much exist. And on that matter, inequality works both ways and as result this sucks for both women and men.
On a personal note, I don't think the usage of "cougar" is really flattering, but I did find Trueno07's double standard distinction amusing
