What is it with the BBQ or cook out?

Youtube is filled with references to potato salad, spice and raisins.

I am White Canadian. The Black people I know right aren't African-American but are African Canadians. Previously, my Black friends had parents from the Caribbean. But I did have a classmate whose great grandfather was a Canadian civil rights leader. None have invited ne over to dinner.

We White people BBQ all the time but here in Canada, the food is boring

So, which part of the world does "the BBQ" occur?

Is this unique to say the South or all over?

And what about the White equivalent?

I mean, if i were to travel there , what food is better st whose BBQ?