"Average" faces tend to be attractive, due in part to symmetry and lack of blemishes. If you mean "plain", however, I am sure you will soon get your wish. Although there are certainly many options available now, to obtain such a toy, if you don't insist on having that particular brand.

average as in not very pretty? so you have a definition of pretty and you are okay with it being the standard however just want an average faced doll?

I wouldn't consider myself very knowledgable such as topics like these, so just curious about what the thinking is behind it.