I’ve heard most of them already: it’s too hard, too expensive, takes too much time, takes too much space, etc. The worst excuses run along the lines of why should I grow my own food when I can pay someone else to grow it for me. Of course, all of these excuses are worth far less than manure-based garden fertilizer and represent all kinds of things wrong with the way non-food raisers think about food.
My challenge to you is what it has always been: grow your own food! You may not be able to grow very much, but what you can grow will provide benefits that will pay for themselves multiple times over down the road. The only thing standing between you and that payday is you. Get out there and do it!