Thank you for sharing your story! Your grandfather’s respect for people from different backgrounds is remarkable and took courage and great strength of character to express outwardly, given that he was likely raised, and perhaps still lived, in a strictly stratified society.
Every country has its own, if less-openly acknowledged, social prejudices. Your story reminds me of the importance of acknowledging the essence and individuality of each person, rather than lumping them into categories and viewing/judging them based on same.
In recent times, it seems like prejudices (in the US) are now more focused on political and religious beliefs than on economic station. I will reflect on your grandfather’s attitude for inspiration as I try to practice tolerance and understanding in present times, and on his courage to openly express his belief in equality and fraternity.