Whether or not they lack common sense says nothing of breeding practices. And, BTW, no, most of the people I choose to spend time with don’t lack common sense. Mostly I see that because of technological advances we just see way more of what strangers tell us that they are thinking and feeling. I don’t see that these people necessarily conduct their actual lives in any less sensible a manner than I do, and I’m sure some of them would think that I’m lacking in common sense because I do things differently than someone else would. I find your gross generalization to be just that: a gross generalization.