I'm going to answer this question as if I'm speaking with a homeowner. Some homeowners are getting by with 1 gallon a minute wells if they have storage. They might not be happy, but are making due. Others don't think twice about not conserving water because the well is high yielding.
That being said a typical household won't require storage with a well yielding 5 gallons/minute, but 6-12 gallons/minute is more inline with a typically family's water needs. Quite often there are multi-generational households being built on acreages here in the Valley, in these cases we will suggest construction methods which will maximize well yield, or drilling deeper into a higher yielding aquifer if it's available.