Not only Apple, but apparently all websites reporting about Apple, like macrumors, have an emoji fetish as well... You are certainly not the only one thinking like this. I do not consider myself that old (25), and I don't use them, and if I would I would certainly not be like "wow more new emoji" as there are already to many to scroll through.
I do remember however that when I was 12 and MSN messenger was still hot I frequently used all emoticons back then, and really liked them. I also notice that certain other people who whatsapp a lot both older (twice as old as me) and younger, also like to use them. My guess is that these are just a hot topic for some user groups and that we both do not belong in this user group.
Nevertheless, I will bet that even those in the user groups that use emoji's do not see the need of the intensive highlight of new emoji's by either Apple or news sites. They will probably be like: "nice some new emoji's" for 3 seconds if they discover them and continue their day like they normally would.