210,000 people a year can't be wrong

It's not just the lawn that saps personal and public resources and requires unhealthy chemistry to maintain. The lawnmower does too. The New York Times reported:

Last year, nearly 210,000 people were treated in clinics and emergency rooms for lawn mower-related injuries, according to the Consumer Product Safety Commission. About 16,200 of those accidents involved children.

Likely, it's a good case for hiring a professional.