I agree with the statement that if a person cannot field strip a given gun, he has no business shooting it.

The ability to strip is more than a skill needed for cleaning, and as noted cleaning can be done without stripping. What's really important about learning to field strip the gun is that you get familiar with the parts and learn how the thing works. Many accidents are caused by folks not familiar with guns just picking one up and trying to shoot it. Had they taken the time to learn the gun, they may have seen something that would have prevented the accident, like a plugged bore.