It's pretty much all battlemasters do too and Barbarians and Rangers and even most paladins. It puts such a champion head and shoulders above all them.
Battlemasters have Student of war. And UA gives them so exploration and social manuevers.
Barbarians can use Rage and Danger sense for exploration
Ranger is an exploration class first, combat class second.
Paladin has social spells.
Champions do one thing: fish for crits.