Sandram 3 SLC - Is using one crutch better than two?

Sandram leaves her underarm crutches behind her and is just using one forearm crutch when she is hopping over the parking lot.

She desperately tries to avoid get her green short leg cast dirty.

It´s maybe not nice to say it but Sandram is in fact better to get forward when she is hopping at one leg and only has one crutch.