At the relatively few professional football stadiums that still use grass, it's pretty common to have to replace large swathes of the turf [[especially between the hash marks) during the season, sometimes multiple times. University of Michigan reverted from grass back to artificial turf because they could never get a decent playing surface to stay for long, and again they only play 5-6 home games each year. So are the professional groundskeepers at these places so incompetent that they can't keep the grass intact for 8 games or less per season? Is there some magical grass surface that would allow year-round every day play without being totally destroyed by football and soccer cleats? Look, I'd love to see the grass field remain there, but for the proposed use it would be destroyed in a month or less and require constant maintenance.