On the surface, the relationship is adversarial. Nobita is terrified of his mother. A single call of " Mama ga okoru! " (Mom will get angry!) is enough to send him scrambling for Doraemon’s "Anywhere Door." Tamako’s primary weapons are her legendary temper, her rolling pin, and the dreaded "10-minute lecture."
A recurring plot point is Tamako’s strict "no pets" rule, which forces Nobita and Doraemon to hide stray animals using gadgets. The Heart Behind the Scolding
Here is where the relationship becomes beautiful. The franchise is littered with episodes that subvert the "angry mom" trope.
Tamako knows Doraemon is a robot from the future. She knows he has magical gadgets. Yet, she still forces Nobita to study. Imagine seeing a god-like being living in your closet who could solve your son’s dyslexia or laziness with a "Memory Bread" or a "Computer Pencil." Why doesn't she force Doraemon to help permanently?