I think it's an urban thing. I live in a rural area in the US, and there are multiple people who make their living maintaining small engine machines (e.g. lawn

I think it's an urban thing. I live in a rural area in the US, and there are multiple people who make their living maintaining small engine machines (e.g. lawn tools), maintaining tractors, maintaining cars, maintaining roads (gravel roads need at least annual maintenance), maintaining HVAC systems, and maintaining fence lines. Plus, lots of folks do their own maintenance.