The paper explores the inevitable relationship
between the two variables of income and expenditure of the
youth in the course of their ageing process in Tehran City.
Such age groups of 15-29 are highly vulnerable due to the
emerging imbalance of their earnings and expenditure. Many
young men and women are financially dependent on their
parents' income even in their 20s. Such a scenario creates
challenges for the youth in different ways. The article explores
how the balance between income and expenditure will
contribute to the improved and healthy life of the youth not
only in Iran, but beauty in other developing countries too. Iran
with a high youth position of population (33%) requires to do
more to create secure and sustainable openings for its youth to
eradicate such challenges and unfavorable situation. The
emerging challenges also include marriage delay for both
genders. In the present research, some 555 youth were
examined through questionnaires in different neighborhoods of
Tehran City. The research is mainly based on the hypothesis
that: "reasonable permanent income determines the propensity
to consume". As per need, different relevant theories were also
consulted in the course of research.