What are the bad qualities about Nancy drew?

Nancy's main weakness is that she is a 16 year old girl and is easily knocked unconscious. She gets knocked on the head dozens of times, in more recent books Nancy gets chloroformed into unconsciousness almost every other book, she has also had knock-out drops put in her drink, been injected with knock-out serum and fainted several times, Nancy is also sometimes kidnapped

A good book to read to show Nancy weak and helpless is Sisters in Crime, from the Files series. By this time Nancy is 18 and her persona has changed, Nancy is seen to be wearing skin tight jeans, mini-skirts and extremely short micro-mini skirts in some stories and is generally more vunerable

The scene shocked me because it was more violent than any other Nancy KO. A girl grabbed Nancy and began choking her from behind. Then a chloroform cloth was clamped over Nancy's nose and mouth. Nancy was also punched on the arm or leg because she screamed into the cloth in pain.

I can't remember if the girl worked alone or had help but Nancy was choked, chloroformed and hit at the same time. Eventually, the girl subjected Nancy to a sleeper hold and Nancy screamed before the pain made Nancy faint !