If a child's physical environment is not a recommended way of living (for example: house is completely cluttered all the time, mother/father/both are hoarders who keep everything that comes in), then the child likely grows up accepting that and thinks it's okay. Or if they grow up in a neighborhood where gangs exist they might accept that too. OR they rebel and end up wanting or working for a better life.
These are just examples, the situation doesn't have to be exactly what I listed :)