I would say that is fine, but It would probably be more appropriate to call them aa ma, aa ye, aa gung, and aa po.
Sometimes the older generation get so used to getting called grandpa and grandma they just take it as ordinary.
If it becomes a big deal, use names to distinguish from aa baak, or aa po. (sounds to me like they are all there at the same time).
Sometimes the older generation get so used to getting called grandpa and grandma they just take it as ordinary.
If it becomes a big deal, use names to distinguish from aa baak, or aa po. (sounds to me like they are all there at the same time).