Based on the context and the answer, generate a question. 

Context: I am very grateful that I chose to wear flats instead of heels . Went to 5 shows today . I could have seen 7 shows , but for some reason and distractions I ended up going to 5 ( 3 shows I ' sneaked ' in without a ticket ! ) .

Answer:

Their flats allowed them to watch the shows comfortably .



Why were they thankful for their flats ?