Morons mow lawns.
Think about it.

Been saying this for years... I mean, what's the worst that could happen if the lawn doesn't get mowed? It keeps growing.

From my observation it's all about order and control. A person can manicure the lawn and get it looking perfect. This keeps the focus on the outside and makes them feel better. They need this because when they look inside they see total chaos which scares them.

Either that, or they just like riding around on a tractor for a couple hours. LOL.