Ambush is all you have to say.
Answer:
you could start of by saying whats ur essay is about but dont say it directly. Then write a thesis statement: main idea + 3 reasons. this always helped with my essays hope it helps. :)
From life after death to the benefits of worldly living.
Personally, I think it's because it was simple and free entertainment. Given that there wasn't a taboo around death and watching others die, and it actually being encouraged, like how it was in Anciient Rome, I'd say a lot of people would actually at least try out visiting a gladiatorial contest.