There is validity to what FSHGLD is saying...think of it from an evolutionary perspective....the object of the game is to pass on your genes correct? Women have a finite amount of time until they are unable to reproduce...hence the term biological clock. Youth and beauty are associated with good fertility....Men will value this trait much more in women because it means she is more likely/able to produce children.
You can see this idea manifested in real life settings....I know many more cases where an older man is dating younger women than the opposite scenario, and I'm sure many others do as well...The truth is, a lot of women like older men as stated above. Social maturity = more likely to be a good provider for her children. That is in no way to suggest however that they don't care how a man looks...but many of them find older/more rugged looking men to be attractive. And like FSHGLD says...the opposite is true a lot less of the time. Obviously there are exceptions in both cases but I think its pretty much a given that on the whole...men care about women looking young far more than women care about men looking young. For men, looking young isn't necessarily a desired trait to women but don't confuse that for meaning they don't care about attractiveness, because they do...although it definitely is not the PRIMARY factor they look for whereas with men it is. This also goes back to the evolution theory....youth and beauty means a woman is more likely to rear good children for a man, but a woman is going to want a man who is strong enough (both physically and mentally) to raise her children well and ensure their safety. That is why women are predominantly attracted to status and wealth in a man...those things denote that he is a leader and able to provide resources for the children.
and U-man...funny how hypocritical you are....you say "what women say and what they mean/do is completely different"...and you're absolutely correct. SOOOOO...even when a woman says "I don't like/won't date a bald guy" that is what she is SAYING. Its still entirely possible for her to throw those fake, superficial standards out of the window if the man comes across as a MAN and shows that he doesn't f*****g care what she thinks. I truly do believe in the theory of "sh*t tests"..that women call out men on a variety of things that can make them insecure...and how they RESPOND will determine how she feels, not the actual point of criticism itself (whether it be short, fat, bald, money, job etc). I'm not arguing that there arent some cases where a woman will just absolutely have to have a guy with a full head of hair because for whatever reason she values that highly...but there are many instances where even if one says she doesn't particularly like bald guys and hasn't considered dating one that she wouldn't date one if the guy fulfilled the other, more important criteria.