Interesting that they highlight the age difference between Caesar and Cleopatra. Do children really need to know that Caesar was 31 years older? I think it's interesting, but it could send a wrong message to children that age differences don't matter.
Once you're an adult and capable of making informed decisions, age difference is not anyone else's concern. I think what Klickteryx was getting at is that children are not necessarily sophisticated enough to understand that an age gap at 14 is a very different thing than an age gap at 21. Plus, it's a weird factoid to drop if we are going to pass Cleopatra and Caesar off as "just friends."
It is not just the age difference which needs considering in relationships but also the nature of the relationship and there does seem to be a view developing in the world that "young + old = bad", without considering what that relationship is.
I am 72 and my great niece is five and a half and when I am out with her and her parents we sometimes get separated from them in a shop or crowded street and I find that I am very cautious in my physical contact with my great niece. She is confident for her age and likes to walk without always holding hands when she is out, so what do I do if I try to take her hand and she pulls away and says, "No, I don't want to hold your hand, I can walk by myself"? Do I try again to take her hand and have her say "No" again and maybe find myself surrounded by an angry crowd?
We have friends who find it very difficult at times with one of their grandchildren who will kick and scream and shout if he doesn't want to get in the car to go home when they do, and they, too, have concerns about what might happen in these circumstances.
Recently, a taxi driver who had a contract with the education authority to take children to and from school who live a long way from school and with no bus service was suspended for 10 days while a complaint against him was investigated. The complaint was made by a member of the public who had seen him kissing and hugging two young girls when he dropped them off at school - the children, it turned out, were his own!
Yes, children need to be educated about the importance of age difference but also about the fact that it isn't the age difference itself which is important, but also the nature of the relationship, and - sadly - they need to know this well before they are 14.
And, maybe, it is the nature of the relationship which is more important than the age difference.