Sentiment, Convenience and Safety
Luck and lack of negative experience is no proof of safety.
Talk to a chemist about the energy density equivalent between a
LI-on battery and an explosive device.
Next, the explosive device is designed to work right once.
The owners of PC's etc with portable battery power now expect the same energy density to be how safe for how long and how many operation cycles?
Li-on.. and other higher energy density technologies... more energy density is never safer. All of the chance factors remain the same once you close the package at the factory.