Oh AMEN to that. The Mrs. and I are a couple of born and raised suburbanites learning the same thing. Not even just the raising food. It's all the other stuff you have to learn and do like build fences and coops, create pastrues and paddocks, buy jars and canning supplies, and learn the ins and outs of axes, mauls, and splitters.
The knowledge involved alone is staggering. What to plant where and when. What demands hot sun what dies or bolts under it. How and when to prune this tree vs. that tree.
Best of luck to you both.
And then there is the concept of the root cellar. :-P