No. Eligibility for the earned income tax credit is based on income, not age. The amount of the credit varies with the number of qualifying children you have. A modest credit applies even if you have no such child; the credit amount (and the income limits for eligibility) scales up for one child, two, children, or three or more children.
A fixed deduction allowed to every taxpayer, except those who may be claimed as a dependent by another person. Extra exemption deductions are allowed for a spouse on a joint return and for each qualifying dependent. A deduction of $3,400 is allowed for each exemption claimed on 2007 returns, but the deduction is phased out for certain high income individuals.