Mrs. Yu was more concerned about Yu Holea's well-being. She didn't want her daughter to blame herself if something went wrong.
What if she loses her confidence and never touches the needles again?
From Yu Holea's action just now, Mrs. Yu concluded that Yu Holea might be interested in becoming a doctor and has learned a few tricks.
Thinking about Yu Holea's cute actions and her serious face, Mrs. Yu wanted to encourage her to become a doctor.
However, the premise was, that Yu Holea had taken training.
Without training, if she tried and failed then Yu Holea would be disappointed.
Seeing Mrs. Yu's distress, Yu Holea softened her approach,
"Don't worry, I have learned a thing or two from an Old Man who used to live behind the house I used to live in the village."
Outside the room.
A few of the maids were peeking inside the room and commented,