The stereotype of a factory laborers workplace during the industrial revolution in Britain is often cartoonishly awful: child laborers, the constant threat of injury or death, 14 hr work days 7 days a week, etc.
So why did people choose this? Were they coerced into it, forced into factories to repay debts? Were industrial laborers closer to slaves or indentured servants than a normal wage workforce?
Or was there simply no other work available, and living in the countryside as a farm worker rather than as a factory worker in the city was not an option for anyone? Were their choices simply "work in a factory or starve to death"?
Multiple reasons, among them, particularly for young women, a new found freedom: a job where before they were tied to marriage as a way up and out of the family home, if they were lucky. The economic freedom allowed them to postpone marriage and childbirth. Then there were those who went into factory work to support their families back home, wherever that was (often country laborers/farmers/or the city poor).
For others, there wasn't much choice...wherever they were living and what their families were doing was not enough to survive or feed all the mouths, or perhaps an illness or some other debt caused them to find a job that made money.
This is just the tip of the iceberg.