I gave up meat when I was 21 - about 41 years ago now.
I used to eat offal quite a lot because it was much cheaper, and some parts were much richer in iron, so, it had nothing to do with being revolted by flesh or any part of the corpse.
Rather, one day I was taking a bath after a particular rough experience, and suddenly connected with all the suffering of all the sentient beings across the planet, how much of it was caused by the actions of humans, and I decided I didn't want to be part of it any more. Not eating meat was part of that decision.
I could. Mom cooked Kosher and that includes organ tissue. I like liver, especially her chopped chicken livers stuffed in celery. We had tongue periodically. It is excellent. I have never tried tripe, heart (except for chicken hearts) or brain, but I sure I would like them.
I eat what I want. Many days no meat. Some days I have a steak or cook a beef roast. It all just depends. I've no guilt about eating meat. I don't like to have a bone on my plate though. Last week I thinly sliced a Tbone steak and never even cooked the bone. I stir fried the meat and ate over rice. I'll have chicken tomorrow at my mother's assisted living with her and her pals. They feed those old folks so well. I can eat dinner for $5 so I often do.
Well I love liver and gizzards. I've always wondered what cow tongue tastes like. I see it every time I go to the store. It looks so gross, but my morbid curiosity is what makes me want to try it. That's also what got me to try pickled pig feet, they're okay but not good enough for me to buy a gigantic jar of them (they never seem to have the smaller ones available).