When people don't agree about how to cooperate, coordinate or get along, they may try problem solving. If problem solving fails or someone declines to try problem solving, then typically they should leave each other alone on that issue. If the issue is big enough, there are multiple disputes, or someone wants to, then they can leave each other alone entirely.
This is a companion discussion topic for the original entry at https://curi.us/2598-conflict-resolution-including-for-parenting