Conversation so far:
What is the Houston Livestock Show and Rodeo's rodeo and concert?
One of the largest draws for the Houston Livestock Show and Rodeo is the 20 consecutive evenings of rodeo and concert, held in NRG Stadium.
During what season can someone attend the Houston Livestock Show and Rodeo's rodeo and concert?
What year was the Houston Livestock Show and Rodeo created?
The Houston Livestock Show and Rodeo has been held at NRG Stadium in Houston, Texas, since 2003.
Are there any other interesting aspects about the Houston Livestock Show and Rodeo's rodeo and concert besides the 20 consecutive nights it is held?
After the professional rodeo concludes, children are given an opportunity to compete.

Question: What else can they do at the rodeo and concert
Self-contained rewrite: What else can children do at the Houston Livestock Show and Rodeo to compete?