It was lucky you lived somewhere where you even had an opportunity to see the butchering process and thus make your own informed choices about it.

In the USA, it is not difficult to go your whole life eating meat and never seeing where it comes from, other than "from the supermarket refrigerated aisle." Many if not most supermarkets don't butcher on site (eg, in college I once briefly worked at a Walmart meat department and was disappointed I would not be learning any butchering, but would just be moving around boxes that happened to contain meat)

I'd like to propose a perhaps odd view: It may not be wrong to eat meat, but it's surely wrong to eat it if you wouldn't be willing to do the butchering and preparing yourself if that were the only way to get it.