Yes, but I don't fill up my phone's storage during those activities.
The issue comes up if you use your phone solely as a camera without an accompanying connection for long enough to fill up internal storage without some way to offload it.
It's a situation that won't come up ever for most users of the phone, and as Wifi and Data coverage increases will become even more obscure.
It's typical in Europe to go abroad on holiday so the only coverage is via expensive roaming - I usually take lots of photos on holiday and like to use my phone to play music in my room or by the pool. Hotel WiFi is often expensive.
It's especially a problem while cruising - onboard WiFi is slow and expensive, buying a sim per country wastes time.
simply no. one example - in europe, there are still roaming charges. in mountains, there are still places with no internet at all (and it might surprise people like you, but no wifi either).
The issue comes up if you use your phone solely as a camera without an accompanying connection for long enough to fill up internal storage without some way to offload it.
It's a situation that won't come up ever for most users of the phone, and as Wifi and Data coverage increases will become even more obscure.