Brunch is a time of mid-morning around 10-11 where breakfast and lunch foods are served together. It is for the person that sleeps in late or wants to spend money on a glorified breakfast or lunch depending on if it's 10 or 11. In my book, there have always been three set meals. You eat eggs, french toast, pancakes, or biscuit-type foods. For lunch, foods are soups, salads, sandwiches. Lunch starts at 11 because that's when restaurants open for lunch. These places don't serve breakfast then.
Brunch is essentially an expensive, glorified breakfast or lunch.
I have only ever been to an official brunch one time. It was at this fancy resort in Utah on New Year's day. The food that was served was food beyond my pallet or didn't mix well. I don't find eating an omelet with bacon and potatoes to go well with roasted cornish hens and wild game chili. The serve the extremes fo super expensive fancy lunch foods with simple breakfast dishes.
If you have ever considered what comes to mind first when you think of breakfast most of them are sweet. These foods are just not made to eat with one another. Breakfast and lunch should be sperate as they are meant to be.
Brunch is often also an excuse to serve some form of alcohol for breakfast. Like what happened to drink at 5 o clock at night, not 10 o clock in the morning? What good does it do for you to start drinking that early? That's just an extra level of fancy.
Breakfast and lunch are also different in the heaviness of food. By this, I mean that breakfast is made to be protein-rich foods that hold you over until lunchtime. I feel it is unnatural for you to eat lunch and breakfast together for the purpose to hold you over until dinner at around 6. Breakfast and dinner are the largest meals of the day and lunch is meant to be a carryover meal. By combining these two meals you are confusing your body and will ultimately lead to me snacking.
To sum it up brunch is essentially useless and confusing. It doesn't make sense and it costs more money. I'll just leave it at breakfast as breakfast and lunch as lunch.