We've got the typical kitchen knife set at our house and it's fine, but I look at meal prep as an opportunity to test and get familiar with gear. When my wife asks me to cut up some onions, I have to decide which toy I'm going to play with. I don't do this at restaurants, because I do have some manners. As far as using my EDC blade for meal prep in the kitchen, I can't imagine not using it. I have zero hesitation in pulling out my edc and slicing meat, or cutting up veggies. I don't know why anyone would. Then again I scroll through the knife picture thread and see all the mint condition knives guys have been "using" every day for years that don't have the first scuff mark on them. Ultimately for me I look at the kitchen as a great place to get that much more familiar with a tool that I intend to use when I'm far away from home.
I couldn't agree more on needing touched up after cutting on a hard plate. Our kids are still little so we have a lot of plastic plates so those are my cutting boards more times than not. As far as blades being dirty, I do this great trip where I pinch my fingers on either flat/dull side of the blade and wipe off any dust and magically it's ready for some cooking.
I'm not sure how you can carry and use a knife and not see signs of wear, but maybe I'm just weird? I have a few folders that I couldn't afford (but bought anyway) that a lot of people would do their best to keep in pristine, new in the box condition. They all have scuffs and scratches on the frames from being carried and the same on the blades from use and an occasional "oops" when sharpening/reprofiling the edge. My AdV Tac Butcher has butchered more than a few steak on my plate and it shows the signs of use. By the way, you have to be super careful when using a sheepsfoot or wharncliffe blade to cut food on your plate. It's very easy to put the point into the plate and damage one or both.