evlPanda said..
If your dad is never connected, why does he have a smart phone?
Its getting harder these days to easily get non-smart phones. My father who I wouldn't have trusted to use a normal home phone has surprisingly gotten used to a smartphone. I would have bought him one of those dumb phones that just have a keypad, but there was some reason he wanted a smartphone. I have learned my lesson though and let one of the other siblings get it for him and set it up... and be the service desk for him when things go wrong

I think even the non-smart phones still have limited apps and data usage though, unless its a really basic model.
Do Telcos even sell plans without data now? Its almost like most are all calls for free, and data capped at a reaonable amount or unlimited. I remember "not so long ago" thinking that 19c for 30 seconds was good value.