I agree 100%. They should make some ethnic hair styles that are perfect, and they should also introduce styles that can work for Caucasian as well as African American, so that families can be interracial and the children can wear hairstyles that suit them as well. So if we also get skintone blending, we could choose a hairstyle that looks like it's a result of nicely mixed genes too :D
(As an off-topic but related to hair note, I really want more hairstyles for regular guys. Not all guys are emo, and they have introduced more regualr guy hairs recently, but the EA team does add way, way too many emo hairs for guys!)