I've officially decided to become a vegan! No more animal products for me. 
Why not? Meat is good.
Meat /is/ good, but this is for dietary purposes. Plenty of vegans cut animal products out of their diet just to be healthier.
It's all about the quantities. Vegans don't look very healthy to me.
If you do it the right way, a vegan diet can be really healthy. It reduces the risk of chronic disease, in some cases.
I am not knowledgeable on the subject so maybe. I think most of them just try to make a political stand.
That's true. There are a lot of people who are ethical vegans, which means that they only adopt veganism for the philosophy. I don't agree with them much, personally.
People are free to do what they want for as long as they don't try to force others.