@Mikizumi - Thank you for providing visual context.
@Turjan - I would expect no less than that trait as it feeds the stereotype and ensures simulated life will be harder for him.
@Pary - I don't see 'unfortunate' as much as I see 'misunderstood'.
@PalmArrow - I didn't know anything about this Sim either except the reaction to him was mostly the same across three major Sim forums where his name has come up (Here, MTS and NRaas, as well as some lesser known sites where Sims are discussed).
I see absolutely nothing wrong with this Sim!
My first impression upon looking at his face is he wears the marks of a Sim who will walk through his life persecuted by others because of a defining physical feature. His overall 'feel' (the impression I get of the possible life he may lead) is he seems as one who understands he must wear mental armor against those who will treat him and see him only for what he looks like and not who he truly is. This is represented by the expression he wears which is accentuated by him having tiny down-turned eyes and a down-turned corners of his mouth representing a slight frown.
Tay has no reason to be sad and should wear his ears with pride! In our world there is scientific proof of large ears being linked to higher intelligence. In The United States, where I am located, if you look at any of the Military strategist, News personnel who have a real opinion and do not feed media fodder or, our last president (before this one) you will notice a specific physical feature which they have in common. Large ears.
Now that I have seen him, when I install 'Ambitions', I will seek out this child to befriend him and make certain he has everything he needs to overcome those who would mistreat him because of his looks. If he meshes with any of the Sims I place in the world, I would be proud to have him (unaltered) as a part of my family tree. And, those ears shall become a signature of excellence his descendants will be proud to wear.