Mom or mom

[Berryfrost]

When do you capitalize the m in mom (or d in dad) in a sentence?

[Casiopea]

Instead of the person's name, like this,

I asked Mom to make cookies.
I asked my mom to make cookies.
Your mom is nice.

Max, Stan, and Dad went fishing.
Do you have a dad?
This book belongs to Dad.
This book belongs to my dad.

All the best.