When I got out of a minecart close to a wall I got behind that wall

What I expected to happen was to get out beside the minecart but instead I
went behind the closest wall.

1. travel in a minecart that has 4 walls that is at least 1 block high and the wall can only be 1 block wide. Ps the walls can`t be more than 2 blocks away
2.press Lshift you don`t need to have any speed at all