Try this
- Choose a nearby turning point or a time window rather than a performance target.
- Check current willingness and practical access before leaving. Either person can suggest returning earlier without having to prove the walk was long enough.
A worked example
“Let’s walk to the corner and decide there whether to keep going.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
The purpose can be company; completing a distance is optional.