I think others have a strange perception of how big the world actually is.
Sweden is not a very big country when compared to US which is almost half the north american continent and it's still a really really really long way to go from the north to the south.
So going across a continent and an ocean is too far fetched for me, especially since there isn't any reason to do so.
Why would the Courier
want to do this enormous trip?
And consider the amount of enemies he'll meet on his travels.
This trip won't take a week, it'll take at least half a year.
What are Legion and NCR going to do?
Wait until you get back?
It's too far fetched to make any sense to me.
But yeah, that's just me, gonna stop being a party pooper now.