His Dad vs His dad

[Lucretia]

Hello,
Please, do I need to capitalize dad, mom, when I speak about someone’s parents, not mine? Which is correct?
1. His dad is an architect.
2. His Dad is an architect.

Thank you.

[Rusty]

Hello,
Please, do I need to capitalize dad, mom, when I speak about someone’s parents, not mine? Which is correct?
1. His dad is an architect.
2. His Dad is an architect.

Thank you.

Capitalize when you are using it as a name:
Did you ask Dad if you could have the car keys?
Don't capitalize where you would not capitalize father or mother.
His dad is an architect.

[Lucretia]

Thanks, Rusty.
So if we have a determiner , we do not capitalize. Can we omit a determiner sometimes (I mean speaking of someone's parents)?
A teacher to a pupil - Lily, please tell Mom I'd like to see her.

[Rusty]

Thanks, Rusty.
So if we have a determiner , we do not capitalize. Can we omit a determiner sometimes (I mean speaking of someone's parents)?
A teacher to a pupil - Lily, please tell Mom I'd like to see her.
The teacher is taking on the persona of the child/student, speaking as the child would to his/her mother. In an informal setting, this is OK.

[Lucretia]

Thanks again, Rusty.