A person should be allowed to ask about the details before agreeing to help.

Agreeing to help before knowing what it involves is how people end up inside commitments they cannot meet. Questions at that stage are not reluctance; they are the work of finding out whether a yes will be a real one. Treating them as hesitation, or hurrying past them, produces agreements that break later at greater cost to everybody.

When you ask someone for help, invite the questions and answer them properly, including the awkward ones about time and money. When you are the one being asked, take your own questions seriously enough to say them out loud first.