So as soon as I get up from the desk I should stop using anything USB? Never connect to anything HDMI unless I'm at my own desk? I think that's preposterous. Not to mention, Apple wouldn't be selling very many dongles if this was really how most people used their laptops.
Everything is wireless these days. Input devices, audio devices, networking.
You basically only need a cable to charge the thing (with your USB-C charger), for mass storage (where most new mass-storage devices are USB-C devices as well, and if you have a well-used old one you can keep a dongle stuck to it), and for displays (at which point you are in a "docked" use-case, and so you can just use a USB-C dock or Thunderbolt-display-with-dock.)
All other use-cases are so rare or esoteric that you can just put them off until you get home and to your desk.
Or are you constantly balancing your laptop and a USB-only printer on your lap or something?