Anime characters should have lips or not?

[NameGervin]

As you may notice most anime characters don't have lips but animes that aired in 90's has complete facial detail compared today's anime.

So what do you think?

 

[Claraviolet]

Lol... They should have if they are representing humans.
I understand what you are saying but I do prefer them to look human

 

[テクニカル諏訪子]

It's possible to remove the mouth altogether too.

 

[Demon_Skeith]

I say do what makes them look best.