Full ride and 529 funds

My state allows 529 contributions to be tax deductible in the year made. I did make a nonqualified withdrawal one year in the amount of the scholarship, but the figuring out the taxes was such a headache I never did it again. So, I still have a little money sitting in an account for a kid who has no interest in grad school. Right now the plan is to just let it ride and hope there’s a grandchild someday?