The twin paradox holds in a Pacman universe where there is no change in direction.

The main issue with the twin paradox is that it demonstrates where our euclidian intuition fails us.

There are several interpretations on how to resolve it, but they are all just flawed lenses, intended to help you along a curriculum until you understand the math, and also understand the limitations of intuition.

The 'turn around' explanation is part of that and unfortunately often sold as the ultimate resolution.