I would agree that, currently, the technology favours the light end short duration stuff.
But taking that list of problems to be solved.
Energy density.
Would make the personal single/two seat VTOL device possible using current drone technology.
What is this story about Toshiba developing a battery giving cars a duration of 200 miles, recharged in 6mins? True or krap?
Would this be possible with a row of 240volt sockets at the local pumps?
Crashworthieness.
I watched something recently where a battery was hit with a hammer, smashed in half and still delivered power. Whether that was practical or a set up I don't know.
What is the crashworthieness of a can of Avgas by comparison?
The rest, training, etc will follow as reqd.