I don't know what kind of hellscape you want to live in where you need private security to keep anything you own from being stolen, especially something as mundane as some wires.

Furniture that lasts forever is an anti-feature for some. They want to change their furnishings about as often as cheap furniture lasts anyway. I mostly buy quality furniture, but sometimes I don't know what I really want and Ikea and Wayfair are great for that. Cheap enough to donate after I decide what quality piece I really want.

Ideally all business would take what they pay for insurance and stick it in the employee's paycheck and then the employee would buy insurance with that money. Reality says, a lot less people end up having insurance if you do it that way. Maybe force companies who once offered insurance to fund an employee HSAs and change the HSA rules so it can be used to buy insurance. It would take some thoughtful design to actually pull off the transition while keeping people on insurance.

Yes, for places with sizeable hydropower. You simply hold the water for longer.

Probably yes, for places where the need for redundancy is rare. Natural gas peaker plants are cheaper to build and simpler to operate with the tradeoff of being less efficient than combined cycle plants.