12% yield on the dollar is an amazing return. My witness node is set to 16% but even if we go for 10%, which other witnesses are going for, it is still an amazing return.
India and Brazil seem to be similar in many aspects, Brazil has a 13% return, you said India has 14%, all my friends and I would rather take 10% on our US Dollar investment over 13% on our Brazilian Real investment just because historically the USD has outperform the BRL. I assume the 14% is on the Indian Rupee, right? I am not from India, but to me 12%, or even 10% on the USD sounds more attractive than 14% after tax on the INR.
Point is, even lowered HBD savings is among the best in the world and in the DeFi space. Your friends are allowed to leave, but in my opinion they will be missing out on great savings. Are you sure they would really honestly leave the double digit interest in USD? I wouldn't, my friends neither.