No. Just try to make a 5x8 plot to grow vegetables and realise how ridiculously hard it is.
That works out as well, yeah.
Chickens have the advantage that they eat almost anything and they'll give you eggs. Loads of eggs. More eggs than you can realistically eat if you're not into weightlifting. And especially, they give you eggs for a looooong time - if you eat that salad or tomato, it's gone. The chicken lasts longer, and you can make it into some delicious soup at the end. But for that you need to be able to stomach killing the chicken, which frankly I do not lol.