What would happen if you do not nothing about it?
There are so many things we want to do and we want to do it all at once with the best effort. But we only have 24 hours a day. This question helps the respondent to clarify how serious a situation is, and thus to prioritize.
The question seems to be simplistic. But since the option of not doing anything is seldom considered, the scenario of doing nothing is seldom examined. Sometimes, things will not become as bad as they seem, or may not as worse as some other issues.
