My do we call our parents parents,mom,dad etc
why dont we call them by their first names like they do to us
because its respectful, and manners is another reason why.
i think its just a sign of respect and formality.
To show respect to the people that gave us this life.
What else would you call them
We call the mom and dad because it's not respectful to call them anything other calling them by their first names would be disrespectful if you're there child.