It is only right to call our in-laws Mom and Dad. No need to ask them. We have to do the Filipino way. Respect the elders and we have to address it correctly.
I call my in-laws Mom and Dad and they are very happy and proud of it. I also call my elderly neighbor Mr. and Mrs. not their name. I only call a persons name when the age level is the same as mine and the younger ones.
And if I'm not sure of their age I just call them Sir/Madame. And in Singapore we call the elderly Auntie and Uncle all the time. And thats the right thing to do.
