Yeah, as I said it would be fine for UK and Australia, but other countries, even though many people in them speak English, would want the games in their language. Adapting the 50hz games to run in 60hz would presumably take work, as would adding the translations to the 60hz versions, and I don't see Nintendo going to that effort. Including both, though, wouldnt take anymore work than they're already doing to release the game in all regions.