I'm not the one you asked, but heres a few things that I might need to use a USB-A port for when traveling:
* My yubikey to perform 2-factor auth
* The checkra1n jailbreak for my work iPhone (I do some iOS dev and occasionally need a jailbroken device. For whatever reason, it doesn't work with a USB-C-to-lightning cable, it has to use a USB-A-to-lightning cable + a dongle.)
* A USB flash drive for transferring a presentation or whatever. (I know these come in USB-C variants, but I don't have one.)
* Charging all the random things that charge from USB-A ports.
Gotcha. Well except for the weird checkra1n thing, everything else is easily migrated to USB-C. To help with that migration, I highly recommend this[1] cable (or one similar to it) as a technological Swiss Army Knife.
I made the transition at the beginning of the year to "USB-C everything I can" and it's very liberating. Ironically the only devices I have left that are not USB-C are my iPhone and AirPods (and my Kindle, but they just released a USB-C model which I will soon use to replace my current one).
* My yubikey to perform 2-factor auth
* The checkra1n jailbreak for my work iPhone (I do some iOS dev and occasionally need a jailbroken device. For whatever reason, it doesn't work with a USB-C-to-lightning cable, it has to use a USB-A-to-lightning cable + a dongle.)
* A USB flash drive for transferring a presentation or whatever. (I know these come in USB-C variants, but I don't have one.)
* Charging all the random things that charge from USB-A ports.