You have a good point, but still, it's easier to explain to children stuff that makes sense.

I teach my children that we live in a sea of energy and that you can feel it when you move. It makes much more sense to them than trying explain inertia.

I tell them that of you rotate something, it will make an energy vortex making stuff seem heavier - and I show them with a gyroscope.

Then I explain that electrons are just like little gyroscopes, but of only energy. And it all makes sense to them. They don't think it's hard at all.