If I want a car, I go to a dealership and I can find a bunch of packages and customizations and there's a dealer to help. The cars have all sorts of technology and it's well integrated. You don't have to buy a car and decide if you want the bright headlights or the bad headlights and then pay extra to have them installed.
There's so much that a bike should/could have: automatic emergency braking, turn signals, automatic lighting, regenerative braking, gps/anti theft tracking, speedometor, rear radar, etc.
You can get most of those things, but then you have to install them all, there's no standard, each has to be charged separately.
Bike nerds ask about your derailleur and nonsense about tires and how the bike should be totally custom, and how turn signals are a stupid idea because you can just balance one-handed while waving and mirrors are bad because you can just look over your shoulder and it's all just a lot. And then they have the nerve to ask why more people don't bike?
Why don't more people bike? Because the entire biking community, culture, and market is built around making it hard and dangerous.
Edit: my point is that the biking community should embrace electronics/batteries since they're necessary for safety lights anyway, and use that as the foundation to build an integrated consumer product. If you want the world to switch to biking (I do) you can't treat it as a hobbyist market. Car manufacturers figured this out long ago.