Damon Asbury, director of legislative services with the Ohio School Boards Association, said the reason essentially boils down to the state trying to solve a problem that doesn't exist.
MORE: http://www.mansfieldnewsjournal.com/article/20140119/NEWS01/301190009/Number-school-vouchers-expand-faster-than-demand?nclick_check=1
See also...
'Help' Not Wanted: Most Of Ohio's School Vouchers Go Unused
https://www.au.org/blogs/wall-of-separation/help-not-wanted-most-of-ohio-s-school-vouchers-go-unused
National School Choice Week: It's Really About Vouchers
https://www.au.org/blogs/wall-of-separation/national-school-choice-week-it-s-really-about-vouchers
Misleading Minorities: Voucher Advocates Hope To Win African American and Latino Support With 'School Choice'
https://www.au.org/blogs/wall-of-separation/misleading-minorities-voucher-advocates-hope-to-win-african-american-and
Choice Challenge: 'National School Choice Week' Is Ending, But the Fight Against Vouchers Isn't Over
https://www.au.org/blogs/wall-of-separation/choice-challenge-national-school-choice-week-is-ending-but-the-fight