Well, long before that the device would stop working.
More important would be improved repairability. My current phone is in year 4 and the hardware is starting to die. But I can’t replace the battery or other parts that start breaking. 20 year software support means nothing without that hardware lasting that long.
In that regard I think 7 years is already plenty. If they pair that with easy to replace batteries and screens that would go a long way.
Commitment against planned obsolescence would be 20 years minimum.
Well, long before that the device would stop working. More important would be improved repairability. My current phone is in year 4 and the hardware is starting to die. But I can’t replace the battery or other parts that start breaking. 20 year software support means nothing without that hardware lasting that long.
In that regard I think 7 years is already plenty. If they pair that with easy to replace batteries and screens that would go a long way.