“Leave it” is something every dog needs to know. It isn’t just because we don’t want them to pick up things on our walk, but we might drop something that can seriously harm them.
Teaching a dog to “leave it” on command is not just part of the obedience training, it’s also part of being a responsible dog owner.
If you can get your dog to “leave it” on command, you will have time to clean up spills, pick up harmful foods or items, or just teach them patience.