Final answer:
Yvette's response to the Ethiopian cuisine is uninformed and biased. The use of flatbread as a utensil in Ethiopian culture is not unsanitary but a customary practice.
Step-by-step explanation:
Yvette's response to eating in a restaurant that features Ethiopian cuisine, where many people use pieces of flatbread instead of utensils to pick up and eat food, is uninformed and based on cultural bias. The use of flatbread as a utensil is a customary practice in Ethiopian culture and is not inherently unsanitary.
In fact, the practice has been passed down through generations and is considered hygienic in the Ethiopian context. It is important to approach different cultural practices with an open mind and respect for cultural diversity.