By Richard Mann, Contributing Reporter
SÃO PAULO, BRAZIL - When Alvimar da Silva realized Uber did not reach some of the more dangerous, far-flung areas of São Paulo, Brazil's largest city, he saw an opportunity: If the popular ride-sharing service did not go there, he would.
After six months of driving for the US application in the gridlocked city, da Silva launched in 2017 his own rival service JaUbra in the sprawling northern district of Brasilândia.
Since then, around fifty drivers have registered and da Silva hopes to expand to other no-go areas of . . .