Started a vegetarian diet last year, specifically I'm a Lacto/Ovo/Pescatarian...it's a thing, possibly.
Fear not! I only eat fish and not any cuttlefish, cephalopods or anything that may have evolved claw(s) out of a necessity for defending itself. Other words, no sentient creatures crawl on my plate (bowl).
...I'll update more later, but I will share this...years before I changed my eating preference I already knew meat was no longer for me, so it wasn't an overnight thing for me. And I must say it was also nice to discover a few months ago that fish are mainly composed of plants, seventy percent. Just goes to show, we are what we eat.