Agility ladder - 4-step in & out

The video tutorial demonstrates an agility ladder exercise. It begins with stepping into the first square with the left foot, followed by the right, and then stepping out. This sequence is repeated in the next square. The exercise can be reversed by starting with the right foot, emphasizing staying on toes throughout.

How does the approach change if you start with the right foot?

What is the significance of staying on your toes during the exercise?