>If I had my physical credit card with me I think it would largely be viable, the main issue would be if I had to meet up with friends it would be incredibly difficult without being able to contact them.
I left prime running a bunch of 80s comedy films in the background as I cleaned my house on the weekend. And so much of the "situation" end of sitcom relies on people having prearranged things beforehand and just happening to arrive on time.
A couple of SMS's and every situation would be resolved.
I could get by on just an SMS/Call only device, the problem is these days everyone moved to internet based apps which require an android/ios app. In theory you could use some kind of bridge server to convert it in to a simple text protocol for a dumb device, but I'm always worried you'd get flagged as a bot and have your account deleted.