Oh dear, now you'll get all the hotshots telling you that a computer is the modern way, works wonderfully and never, ever fails, so back to the slippers, grandpa.
We wrinklies (well me, anyway) must realise that the fact that the chart wins on every operational and HF criterion, ie access speed, simplicity, ease of use, accuracy and so on does not overcome its fatal flaw.
It's a piece of paper and not a screen.