Also I don't like them. I really dislike those ears.
Yeah, I'd say that was pretty obvious lol
I do agree, though, that it's silly to add animal ears just for the sake of it. I do sometimes find them to be very cute, but unless they have some purpose in the story (like, there is actually a reason for them to exist and the character being half-human –or whatever they are– is actually relevant to the plot) then it's plain unnecessary.
I will also state my dislike for the combination of human and animal ears, not only because it looks disturbing, but also because it really gives the impression that the animal ears were unneeded and were only added for extra cuteness.