Using food to train your dog or cat doesn't just motivate them. It provides enrichment and helps teach behaviors effectively.
Instead of waiting for something to go wrong with behavior, spend time preemptively giving attention to behaviors that you want to see the moment you see them.
Rewards are one of the most common ways that people think of to get other people to do stuff. In the talks that I give on the topic I tell people that rewards are actually one of the least effective ...