Final answer:
Without specific context for Davey and his sibling, various historical scenarios suggest that they needed to find work due to economic necessity, to contribute to family income, or to avoid poverty and debt, which were common reasons for young people seeking employment historically.
Step-by-step explanation:
The question asks why Davey and his sibling needed to find work. While the question does not provide a specific context from a known story or historical event, we can deduce from background knowledge that there were various historical reasons why young people had to seek employment. Considering the economic hardships faced by many families where adult men lost jobs due to accidents or economic downturns, families would struggle financially. This often necessitated that other family members, including children and siblings, had to seek work to contribute to the family's income.
In situations where the family faced debilitating debts, or where adult wages were insubstantial, children had to forego education and find work to help sustain their households. Employment opportunities ranged from piecework at home, working in mines, giving music lessons, or working in factories. Depending on the time period and country, this would often be the only way to avoid debt or poverty. Without specific details about Davey and his sibling's situation, we can't confirm the exact reason, but we can understand that the quest for employment by younger family members was often a necessity during tough economic times.