If I was Emperor of the Universe, I'd make the Type G plug the only standard: Longer ground contact that makes contact first, plastic cover on the plug-facing side of the hot/neutral contacts, polarized because there's only one direction to plug it, built-in fuse. Make it recessed, and it's perfect. And since it's rated for 250V/13A, it's great for any household device that doesn't need three-phase power.
Yes, it's chonky, but the more I learn about power plugs and sockets, the more I see how well designed it is. Unless someone from the UK knows if there are actual issues with it :)