It might actually be a better environmental decision, if instead of buying a new second phone, it is instead about keeping an existing phone in use and not adding to the burning heaps of e-waste. Given the rising popularity of refurbished phones, not to mention the lower costs, it might actually be the opposite of what you claim, at least on those grounds.
And for the rest, well, "just works" for what? With a little time and effort, it may even get to the case of the "just works" part is a siloed unit like a SIM card that is just installed to the device, making it opt-in and user owned...
And for the rest, well, "just works" for what? With a little time and effort, it may even get to the case of the "just works" part is a siloed unit like a SIM card that is just installed to the device, making it opt-in and user owned...