I don't like posts like this. "Beautiful in your own way" doesn't cut it. Instead of telling women that men don't care about those things (which, for most men, is false), be honest about it and encourage them to find a way to circumvent that problem altogether. Trying to impress men with your looks in order to get places is an uphill battle that should be avoided altogether, but let's not be naive and pretend it doesn't exist.
Younger people are generally more attractive than older people, all else being equal. This is okay to say. It's not sexist. Don't encourage people, whatever their gender, to compete in that arena with people younger than them as if they're on equal footing. Tell them to accept that and find a way to get the attention they deserve without desperately driving down their self-esteem.