For Filipino moms and dads, in this day and age, do you still practice the use of "po" and "opo" and teach your kids to do the same?

Yes, we definitely do. Hubby and I are both raised to value and pay respect to our elders and we also pass this to our kids. I believe that using po and opo is a very beautiful tradition and has a significant role in identifying us being Filipinos. We also keep on reminding our kids to do mano as a sign of respect to us and to their relatives and elders.