>> The iPhone picture always turns out, but the Canon takes a modicum of skill, which my wife is not interested in, and I'll never be able to teach passers-by when they take a group picture for us

This is why my Canon 80D sits and gathers dust. Too many family moments fluffed, vs my Android's basically 100% hit rate. Yes this is largely a skill issue on my part, which is sad, but modern phone photos are more than adequate these days.