Comment by spraak

Because you're assuming maintaining the same eating habits. I have literally consumed no overt oils for a year now, have had no need for a cooking fat, and have had no lack in creative dishes. I eat flavorful curries, soups, etc. If I want something similar to sauted, I can use water or broth. If I want something crispy, I can bake. You just lack creative imagination to see that it's possible.