Don’t go to the schools that don’t treat a student owned plan as a parental asset if that’s your financial plan. You have to choose how you want to hold the money and what you think will work the best for your family.
If 10 schools all would treat the student owned 529 as a parental asset, but the 11th school on your list treats iy like a child’s asset, will you take the chance that your child will go to one of the 10, or base your financial planning on the possibility that the child will go to that one school that does it differently? Do you take the savings now on child 1 without knowing if child 2 will go to the school that treats the funds as a child’s asset.
Life’s full of chances and choices.