You have a point. After I wrote it I thought of 2 things. Firstly, even those that are lucky enough to travel will never travel everywhere. So, how can they claim the best without having seen all possibilities? Secondly, there are ways to learn and /or experience things without being physically present, like read about it in a book, or watch a documentary. That counts for something.

Now I think about it, I could have changed it to:

"I live in the best country on the planet!”

"Really? How do you know? How do you measure that? What evidence do you have to back that up?"

But, it would probably go all downhill from there, as the original one inevitably would....😆