^ that is unfair.
I know that if your MIL/FIL were you real aunty/uncle like chachi/chacha, khalaa/khaloo, then it makes sense. Otherwise I think calling them Mom/Dad brings you closer to each other.
I so beg to differ. What's in the name? I would rather have my husband respect my parents with heart then to just "show" his respect with such titles.
Honestly, such things shouldnt be made complusory from either of the partner. It's great if your partner feels he/she wants to address your parents the same way you do but its not something that should be made to do, it shud be felt from within.