Why is evidence important in history?

To prove what actually happened in history

Explanation:

Well as you can see throughout history many events have happened, but to actually be able to prove what we know throughout these historical events we need to gather as much evidence to prove our judgement.

in this scenario it would be the consumer demand as most influential in making the decision. the band members need to figure out where and from whom they will make the most money, in other words who out of the two consumer groups - football fans or car drivers - will spend their money, who is more likely to contribute to their cause and buy what they are offering.