Try pairing up with a neighbor who walks their dog. Make walking a social event that includes some play time.
Good idea. For a short time, I did this with Bea and the neighbor's Bishon because Bea was curious about Roxy and wanted to "keep up" with her. Now, Roxy could fly by on a rocket and she wouldn't give a rip. (She's OVER Roxy)
@Cali-baker is right: patience and persistence. Don't give up. This daily outing is important for a lot of reasons.