Income limits and benefit amounts depend on the number of qualifying children (0, 1, 2, or 3+). A qualifying child for the EIC must be under 19 years old, or under 24 if a full-time student, or any age if disabled.he income limit depends on the number of âqualifying childrenâ and on whether the tax filer is married or unmarried. 1  The limit for families with no children is $14,590 ($20,020 if married);
Until the age around 25 your brain is not fully developed. The exact age varies person to person, but it's around 25
According to recent findings, the human brain does not reach full maturity until at least the mid-20s. (See J. Giedd in References .) The specific changes that follow young adulthood are not yet well studied, but it is known that they involve increased myelination and continued adding and pruning of neurons.