Grandma can eat shit. Every job now expects you to do the work of 3-4 jobs from Grandma's time.
You also have to do that work while being constantly monitored and recorded in most office environments, even if you work from home.
Just because physical labor jobs have more technology doesn't mean people are working less hard. Everybody is busting ass trying to make half of what Grandma made.
Get outta here with that shit, Grandma
I wish I remembered the details, but I read a couple years ago about new batteries using the same sort of principal.
It was being studied as a way to handle a specific part of radioactive byproduct from nuclear power.
You sandwich the tiny radioactive bit in materials to generate a charge, and the whole thing is encased in conductive man-made diamond.
A battery the size of a half dollar coin could generate roughly a watt of power for, ostensibly, up to hundreds of years.
The big seller beyond its lifespan is that the diamond is dense enough to shield the tiny amount of radiation inside.
Incredible potential that probably wont be realized in consumer goods for decades. Just think about never having to change the battery in a remote ever again. Or even a lot of wireless smart home sensors and devices.
A shocking amount of things take very little power. Air tags that never die. E-book readers. You could make super dim puck LEDs that are always on and can go anywhere for illuminating pathways.
You could never scale it much in size/output because the diamond encasing would become disproportionately heavy and expensive, but for anything 1.5 Watts and less, and possibly up to 3 Watts or so, could be totally feasible.