I'd love to have a long passphrase that has to be entered after booting and every 48 hours, and then a 4-digit pin that's usable when TouchID is for when I'm unlocking my phone with my nose.
I currently use a generated long password on my Android phone and have adapted to the extra work, but having the option to enter a password once a day and a pin or shorter password throughout that day would be a welcome convenience option, and it's not really significantly more onerous than just a pin.