On: Why do some countries drive on the left and others on the right?

[andrewstuart]

Australia is planning to move from left to right hand side starting in 2020 but it's a big change so the change will be phased in with trucks moving to the right in 2020 and cars in 2021.

[philwelch → andrewstuart]

How? Won't the cars and trucks run into each other?

[Kiro → andrewstuart]

I presume this is a joke. Not sure what the point is though.