Bloodsport

Most cybertronian societies are more prone to violence and aggression based sports than other species. Due to the near invincibility of their frames, and the ability for injured limbs or body parts to be easily replaced, sports that would severely injure or kill another species are not as harmful to a cybertronian frame.
Due to this, the society that was cultivated grew more complacent about bloodsports than compared to other societies. While not entirely accepting of it, most authority overlook it if the sport isnt causing neighbourhood wide destruction or mass death.
Cities that contained a higher population of hard labour workers contained a higher likeliness of bloodsport arenas. Things such as lack of education, substandard working conditions, frame build, and the lack of other form of “acceptable” entertainment participate to the higher percentages of bloodsport arenas.
On earth, a lot of cybertronians enjoy demolition derbys and other machinery destruction shows, due to the sheer novelty of the destruction. Cybertronians are more likely to do stupid shit for the thrill of it, much like humans.