I'm a human. I have emotions. I have academic learning. I have life teachings.
As such, the basic answer to your question is "no". But I do speak honestly based on what I've learned from the previous paragraph. My reality is not the reality of others. I've lived in several countries, including the US. Trust me, Americans know what it's like to live in the US, but they don't have a good understanding of living in Europe, let alone a single country there. It's a matter of norms. One persons norm is another's abnormality.
This is even true within a country. There are Brits here, of which I am one. But of them, a different life experience happened.
All that said, we speak from emotion, from experience. Is that common sense? Well, it might be to ME.