What is the most logical next event?

How to walk your dog as a good neighbor
Pay attention to where other tenants are walking their pets.
Make sure those pet users pick up and dispose of waste properly.
Avoid following the same paths as less considerate dog owners who do not clean up after their pet.

OPT:
(A). Do not yell, or intervene if owners are not home when they need to clean up. You should also schedule an obedience dog training class.
(B). If someone you know actively picks up their pet after they leave the house, avoid following that same path as an elderly person who may pick up their pet. If you know any front porch dogs, keep them away and keep the entire family off the same paths as smart neighbors.
(C). If your kids want to visit a park nearby, ask if they're going to the park or if they're learning the following manners. Post signs at parks you can easily recognize.
(D). Pet owners who understand clean up, supplies and etiquette are often misunderstood by the less concerned dog walkers. Offer to hand them an extra bag for cleanup.
(D).