That's what the rest of us envision, too :) but it's overridden by the vision of some sweaty guy in cargo shorts and socks with sandals scooping holes in Mother's final resting place. Maybe someone left a small memento at the gravesite; a cross, a ring, even a hot wheels car for a child. Better to just leave it alone.
There are tons of great places to hunt. Homeowners' yards, parks and athletic field areas, farm fields where houses once stood, schoolyards, church yards, sidewalk strips, those little grassy islands in parking lots, beaches, boat docks, fairgrounds, old reunion or picnic grounds, ghost towns, cellar holes deep in the roads, old fence lines...there's no end to them. There are resources for historic maps of all kinds to see what was where back in the day. So even on days when the weather doesn't support dirt fishing, research can keep ya busy :)