I don't think I've ever had any book like that. Something similar is made when people achieves a goal or arrives to a significante age. Then a big greeting card is/was prepared for everyone to write a message in it. Just like in your poetry book, usually advices to be good and phrases, some people could make a free drawing.
"Being a good girl" is a very tricky phrase.
I am not sure if the poetry book was a typically Dutch item. For sure the idea behind it was to stimulate writing poetry, not lecturing children or brainwash little girls but who knows. The influence of religion could be felt and keeping girls underneath thumbs.
Good girls will never achieve anything. Since girls/women are always picked at, there's no point in being good, good as in being forced to. It is better to be who you are, straight and show care if you feel it. Not because you are forced to. It takes every feeling, motivation and love out of a person.
Cards like you mentioned we also have if someone falls ill or might emigrate and for birthdays.
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