What is Socially or Culturally Deemed "Normal"?

Choose one aspect of embodiment (e.g. colour, height, weight, race, gender, dis/ability, dexterity, appearance, etc.) and give an example that demonstrates what is socially or culturally deemed “normal” in relation to this aspect. What difficulties might be faced by someone whose embodiment is not “normal” in this regard? Are there stereotypes or common presuppositions based on this aspect of embodiment?