The standard deduction worksheet is only used if someone can claim you or your spouse as a dependent. Otherwise that worksheet is not used and the amounts shown on it are not used.
The amount on line 8 of form 1040 is correct at $25,300 if you or your spouse is age 65 or over since $1300 is added to the $24,000 standard deduction for married filing jointly for age 65 or over or blindness of one spouse.
