👉 In the context of sociology, a "lifer" is someone who has a stable or reliable source of income that allows them to live independently and not depend on their parents. Lifers are often referred to as "sustainability heroes," as they have been able to sustain themselves by working hard and saving money over many years. Lifers can also be defined as individuals who have achieved financial stability through various means, such as job security, investments, or savings. They may have accumulated a significant amount