There are three important aspects to keep in mind for skin shading:

• Specular
• Subsurface Scattering
• Global Illumination/AO

All of these components are key to setting up a good skin shader. A common problem for skin in CG is the lack of light bounceback from different parts of the skin. GI helps to achieve that effect and gets rid of the AO created by the engine around the corners of the nose, lips and fat above the eyelids, fortunately, Eevee's AO handles light bounce approximately, It also helps with translucency.