This is a question people often ask. The truth of the matter is that, no, they do not make good city pets. My pigs have several acres in which they are able to roam free and root to their hearts content, yet the damage they do is still a big problem. Pigs were created to root...plain and simple. It's what they do. It's what they LOVE to do and you will never change that. Sure, you can limit their access to your yard in hopes to save your grass and flowers...only taking them out to potty or confining them to a pig run in the back yard. Or, better yet, you could house train them to use a litter box. All of these options are available to you, but are they fair for your pig? The honest answer is no.
These are some pictures I have taken of my yard. This is a constant daily occurance with pigs. The first picture is the damage that my newest rescue pig has done in 1 week. This area use to be grass! Please look at these pictures and ask yourself 2 questions. #1. Is it right (or even possible) to keep a pig from doing what he was created for? #2. If I don't let him do what he was created for (...see photos!), what will he do with all of that energy while confined to my home?