R u satisfied with Dr Kalam not speaking in hindi at all

Hi I respect Dr Kalam as any Indian Do but i just sometimes think that why a country's president never speeks in Hindi as about 65% people in india uderstand only hindi.after all hindi is our national language.Dr Kalam always speeks in English as he is from south where this stat is reverse there only 35% people speek hindi and hardly 30% speek English then how can he convey his message to every one