Surprisingly a lot of people. Which is why starbucks has cakes and cookies in the breakfast display. People get boxes of sweet muffins, scones, etc and bring them for office breakfast. Donuts for breakfast. It's a thing. Most people eat sweets for breakfast. Either a fruit and sugared cream of wheat, a donut, a muffin, a fruit cup, etc. Even cereal is pretty dessert like with marshmallows and sugar. And pancakes are sweet which is basically a cake.  Non sweet breakfast are mostly a weekend think like bacon and eggs.