No fan of governments/ groups of governments mandating anything, but forcing phones to have replacabale batteries is very sensible indeed, it should not have taken them so long to start insisting on it. However they probably should go further to, force phone manufacturers to have a fully standardised form factor for pouch cells, the way AA is a standard for alkaline and NiMH cells, and 18650 is a standard for hard cased lithium cylinder cells... Its actually very hard to find two pouch cells from different manufacturers with the same dimensions and capacity, makes it tricky to mechanically design things when you can't be sure you'll always have the same cell type available, let alone with the complexities phone manufacturers add by having different connector pinouts and contact shapes even on the same sized cell. A proper standardisation would be very welcome, and that way you'd be able to find decent quality replacement batteries made to that standard form factor from many decent generic manufacturers and the same sort from the official manufacturer, rather than the curent situation where there might be just one sketchy sounding manufacturer making copies (or sketchy manufactuers making doubly poor quaity copies then fake-marking them as official brand) of that weird shaped cell which the official manufacturer hasn't made for years. Would be helpful beyond hpoens too, if puch cells staretd to have proper standard designs it would make it much easier for designing things like small RC cars much easier(obviously high powered packs for higher performance RC are far bigger than phone related standard would help standardise).