My wife majored in Home Economics in college (mid-60's) -- clothing and textiles were her area of interest, but the department chairwoman said that no student would leave her department without a rounded education. Therefore, she had to take several food and nutrition courses.
The final course, her senior year, required her to create a menu, buy the food (fortunately, the department paid for it), cook, present, and serve the food. This all came with properly written invitations to the professor, a girl friend student, and me (husband). The meal was served in a special room set aside for the dinners. My wife, as hostess, was responsible for making sure the conversation never slacked and that we all had plenty to eat ("Would you care for more food?" NOT more beans or potatoes -- you must not try to guess what your guest might want!).
She did a fine job and graduated with honors. She also used a great deal of her social and food training during my 20 year career as a Navy officer, as hostess on many occasions.