The average age of competitors has largely stayed the same throughout seasons in fact. It typically hovers around 20-21. Maybe closer to 22 depending on how old the oldest contestant is. The stark contrast this season is that nearly all the women stay under the 20 range and only two men are over 22.

Same.

Apparently Deon Lewsa, Jr. and Damon Bellmon
Completely ripped off their routine from Les Twins.