that's a really interesting perspective, I guess it might also be difficult for people who have friends that share a first name with their parents, I could totally see not wanting to call your dad John if that's what you already call your best friend.
I grew up like this, using my parents first names. I started using mom/dad as a place denominator after they divorced, though.
I'm at dads is easier than using the first name, as that could mean other people's places, too.
So it's useful in a family that's united, and everybody gets it, but it's ironically harder to maintain after a separation. At least in my experience.
that's a really interesting perspective, I guess it might also be difficult for people who have friends that share a first name with their parents, I could totally see not wanting to call your dad John if that's what you already call your best friend.