Prepared is always a good idea.  
This same conversation I had with DH about 1-2 years ago. 
I never had "livestock" of any kind before (my parakeet, oscar (fish), tortose, and 2 dogs don't count as livestock lol).  I year later and I have Nubian dairy goats (now 4) , more "multi-purpose" chickens than I can count, meat rabbits and a huge garden (that did horrible this year...green toms on all my tomato plants!  Potatoes did ok tho...), and quail soon.  
DH spent a large part of his life living in Idaho.  No electricity...dirt floor... only milk from a goat...the works. (I'm not knocking any of it...just giving details)  Parents thought the end of the world was coming (late 70's) so they bought some land and ran into the mountains.  
I was raised in the city, had video games (Atari in the beginning lol), TV's, telephones, and no knowledge of food besides it comes from the store.  (I had never seen a real live goat until a year ago...)
We have decided of regardless ....without a reason (depression, war, etc) to blend the 2 together.  But what we show are kids they will have permanently embedded in them.....and that is important.  It is our choice to become more self sufficient.  Not because we are being forced to.
We hope to own our own land some day and be mostly independent.  A day in my yard of hard work is so much more fulfilling than an easy day at work for a pay check....  
"edited for grammer and typos..."