Is America metric? Why litre bottles of soda pop?

I live in Toronto, Canada and we use metric measurement. And I understood that the US opted out and continue to use the imperial measurements.

Then can someone tell me why I see soda pop/mouthwash being sold in litre bottles in the USA?

Is it a way for the manufacturers of these products to gough the public for more money by confusing them with the size by using something that they are not familar with? :confused:

woops sorry about the multipe posting it didn’t go through on AOL so I used internet explorer. But it seems it went tru, I assume the moderator will delete I don’t know how to delete them…