Stretchy Clothing

Would someone please tell the hosts we do not need to see them pull on the material of pants, dresses, etc to show thw stretch. Once or twice is enough but I have seen them pull on the material 10 12 times before they stop only to begin stretching a few minutes later.
I am currently watching the host continually pulling on a pair of Iman’s pants that are so wide and the material appears very giving, i am not sure why stretch would be such an issue.