I don't know, I see people every day using old smartphonereachinfg for a power outlet everywhere they can because their phone do not last a day. Most think going to a shop to ask them to replace the battery will cost an arm.

I think that law doesn't even go far enough, they should standardize a battery format. When like me you are used to open smartphones and replace batteries you realize how very similar they are all in footprint and could be compatible with each other with very minimal effort. If there were only a couple of standardized formats you could find new batteries in every small shop/airports whatever and easily have spares. Chance is that other electronic devices or toys would also adopt them.