Philosophically speaking, morals are usually a minor distraction towards progress. Progress is complicated since often progress is contrasted by tradition and funny enough humans have traditionally been eating meat, but I bring progress into my argument since it is progressive to continue consuming meat.
From common knowledge; meat is high in protein, a vital nutrient to the human body and it's muscle functions. Muscles are important; without muscles we wouldn't be able to lift things and we'd be heavily weak. You need muscles to walk, and perform pretty much everyday functions in general.
By stripping away meat as part of some sort of moral code that is purely fantastical by human minds, since morals were brought forth from human imagination for better or worse; you hinder progress. I believe society should be progressive so I think meat should continue to be consumed.
In addition to these arguments, meat consumption is commonly observed in nature, as humans we should not be different. We are a living race, we need to live for ourselves (sometimes) at the cost of other species. I am not advocating for over-production or endangerment of animals however, that disrupts the food webs and food chains of many and causes more issues than resolved.
Overall, we as a HUMAN-RACE should not stop eating meat purely for the ideal of moral values. While the vegetarian diet is good for many things, taking meat from younger children can lead to MANY problems later and early on in life due to poor muscle development and whatnot.
I always tend to stand in the middle-ground of any sort of debate, it's strange. Any who, now realizing that plants contain higher trophic levels than meat, and thus more "energy" (i forgot the actual name i hated science); some studies are pointing to find the vegetarian diet helpful. But then, my previous points still stand.
So with all of my concerns stressed, I feel like it should be left to the consumer populace to decide. Meat production companies should continue doing what they do, and it should be left to the choice of the consumer with full knowledge of the risks and benefits of each diet.