Skydancer^a lot of people haven’t a clue how to budget or cook^, but what is the evidence that this is a particular a feature of poorer families?
As for mobile phones. ownership of mobile phones is lower in the lower income brackets and many still depend on phones that are suitable for calls and text and no more.
Like it not smartphones are essential for everything these days, from claiming benefits, job seeking, Without the ubiquitous app, life is very difficult. I speak with feeling because I struggle to use a smart phone for reasons discussed extensively on the thread about owning such phones and, yes, it causes me problems.
I had a road accident recently and no matter how many times I tell the insurance company to use my landline or email, they will contact me on my mobile phone and I have difficulty accessing their messages.
Many poorer families do not have landlines and use pay as you go phones., which can limit their phone usage anyway.