Why do people allow dogs in races like a dog sled race I'll give u brainliest if u answer correctly!!

Six years later, a documentary, Sled Dogs, recounts the vivid details of that story, but goes further to ask and then explore if the grim events uncovered in Whistler were an aberration or just an extreme example of a callous subculture in the world of mushing where dogs are viewed as expendable. Directed by Fern Levitt, Sled Dogs – the first documentary to examine dog mushing – talks mainly to the critics of the sport and takes the audience on a whirlwind tour of the mushing business into other parts of Canada, into Snowmass, Colorado, and into Alaska where mushing’s signature competitive event, the Iditarod, occurs each year, with mushers and dogs racing to traverse more than 1,000 miles of terrain between Anchorage and Nome.

Explanation:

it is due to the halo effect as the impression of the boy created earlier.on the mind of the principle affected his decision