Some questions should not have to be asked! As an example, I have ridden on many busses and have never asked the bus driver if he or she were sober! Some issues should be presumed resolved by the time you're involved. The recent special election in Alabama is an example of questions being asked which should have never needed asking.
Standards might change. In the 12th and 14th centuries, it was not uncommon for a girl to be married at 12, but now we consider anyone at that age to be a child. The needs of society dictated the change, and it does not get changed based on some whim or temporary sentiment. Similarly, it was once not uncommon for certain people to own slaves, but no more.
We need to know what our standards are, why they are there and follow them!