You may have met someone who was a Utilitarian at some point in your life. I had never really directly heard this word, until shopping for new bike tires and an upsell pitch came through. Growing up, my Mom was definitely (and still is) a Utilitarian to a certain degree. She made quite a few standard dinners. Stir fry. Chicken Pot Pie (yum). Spaghetti. Meat + Starch + Veggie standard dinner.
She did this out of a method of utility. Think of utility as being the easiest means to an end.
Imagine this, you’re at a bike shop, and get pitched an upsell for your bike.