Utilities
Planning ahead is key. Having worked and lived in a big city, most if not all utilities are underground in some sort of duct. Years ago it was tile, then they progressed to concrete. Makes it somewhat easy to replace and repair, and protects the cable.
The further away from cities you get the more of a mish mash of underground and aerial cabling you get. Terrain has much to do with it.
Living very rural with no or little competing utilities, you can dig up dirt lay the wires and cover.
I now live in an area just outside a big city, rapidly going city though. I can't tell you how many times they have dug up along the roadside to lay utilities in dirt, and damaged what was already there.
The cable companies are the worst. One year its Spectrum, then AT&T, then Google fiber, and on and on, laying yet another cable. A cable line always gets hit. Why can't they just lay one large cable and have them pay to use it?
Now electric lines are more complex and don't play well with others.

They go deeper but still will someday need to be upgraded and/or repaired.
That's my non engineer take.
