Re: Cash is King
£50 isn’t a particularly large denomination note (and there are occasions where they can be useful, admittedly not a large number of them just now, but inflation will gradually change that).
£100 is indeed a fairly large note, and I’ve never seen one in real life, outwith a bank. And as for €500? Well, they are withdrawing them, for exactly the reason that virtually nobody non-dodgy uses them.