Speak for yourself. I don't install anything or take any photos with my phone. I just use it to make calls and browse the web so I very much doubt I will ever use up 16GB.
With 4K and 12 megapixels? It's going to go by so fast...
When grandma needs to learn how to manage storage, this is going to make everybody's life harder, from people who do tech support to application developers who need to rethink how they use application storage space.
Literally, the only player who benefits here is Apple. And even that is disputable due to the problems it will cause to iPhone app developers who now need to be extremely cautious about storage use.
That's no discussion. That's a commandment like it's a fact no-one needs 16 GB. That's what I'm disputing.