Why is it wrong for a man to want a younger woman, isn't it like any other standard, such as a woman wanting a tall man?

I've heard a lot of women say that they will only date men they are physically attracted to and that it makes no sense to do otherwise since you won't be happy in the relationship.

So then if a man is not physically attracted to women his age, is it fair to shame him, call him creepy and predatory so he'll cave and instead pursue women he has no attraction to?

What is the point of categorizing standards and labeling some as admirable, noble, reasonable and others are shameful and distasteful? If you're not breaking the law, doesn't it make sense to pursue what you're truly attracted to.