I was a vegan for some time, however all my research into the topic showed me, that being vegan is more of a personal choice than a moral choice. For example: cows will actually suffer, if they aren't milked and the eggs you buy, haven't been fertilized, so they could've never become chickens. The only valid moral argument that veganism brings forth, is the fact that animals are sometimes treated poorly during this process. This however is of course a very valid argument! Fortunately, this topic has gotten a lot of awareness and therefore, at least where I come from, people buy more and more organic free range products.
That being said, I do believe that vegetarianism is a morale choice, more than a personal choice! Also do not confuse pescatarinism for vegetarianism, we do not have the same beliefs and quite frankly, it's insulting when pescatarians say they are vegetarians.
I would go into a long debate about why being vegetarian is a morale choice, however it's like 3AM right now, so I would rather not.
I will leave you with this quote though:
“Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow-creatures is amusing in itself.” ― J.A. Froude