At her core, the Medicine Girl is a representative of the common folk of Valisthea, just as Clive's "Cid the Outlaw" moniker represents his merry band of rebels with a common goal, Hugo Kupka represents his republic, Dion represents his empire, and so on.

Source: https://gamerant.com/final-fantasy-16-medicine-girl-who-why-story/

The Czech Republic currently experiences 50 road deaths per million inhabitants annually, and Kupka aspires to reduce this number to below 40.

Source: https://praguemonitor.com/life/06/09/2023/young-czechs-will-be-able-to-enroll-in-driving-school-at-the-age-of-15/