Well, there are those magnetic breakaway USB-C cables. Maybe they'll just bundle one of those with the computer.
That's important for Pro Display XDR users, or Thunderbolt dock users, who only use one cable to plug their Macbook in (power+thunderbolt).
Or, screw it, we end up with a charging only breakway USB-C port.
For maximum trolling they should charge $29.99 for this feature..
And if they move to the iPhone MagSafe charging puck design, I imagine they'll sell those separately.