Due to the nature of most print methods, we do use the same size print across all shirts sizes.  There are some exceptions to the rule, like for infants or toddlers we usually opt for dtg or vinyl to avoid having to make the design so small for the larger shirts.  Typically we will print youth XS to 5XL using the same screen layout.  If you wish to pay for DTG on some of the youth let us know and we can let you know the cost difference.