Admittedly Charon is almost half of Pluto's size (and is thereby itself sometimes considered a dwarf planet rather than a moon), but the other moons are more than an order of magnitude smaller, which is a greater proportional difference than the one between Earth and its moon (roughly 6:1).
Admittedly Charon is almost half of Pluto's size (and is thereby itself sometimes considered a dwarf planet rather than a moon), but the other moons are more than an order of magnitude smaller, which is a greater proportional difference than the one between Earth and its moon (roughly 6:1).
IMO Pluto–Charon is definitely a double dwarf planet system. And I've seen arguments that Earth–Moon should be considered a double planet.
I support both theses but didn't want to get too far into the weeds.