- Single-parent families, with a parent living on minimum wage.

- Students.

- People are expected to leave their parents house at age 18. But without a proper trade skills, they can only earn minimum wage.

- etc.

But we may be missing the point here. Since this article doesn't seem to take into the consideration of other living expenses, even if we're talking about a family with two parents and kid instead of a single person: the family may still struggle to pay the rent plus bills.