<span>according to the five-factor model of personality, estelle would score: </span><span> high on extraversion and high on neuroticism
on the five-factor model of personality, people are considered as an extrovert if they love interracting with people and became the center of attention (we can see that Estelle is outspoken and lover parties & crowds)
And people will be considered as a neurotic if they're cautious and take everything seriously (which cause Estelle to constantly worry)
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Paige might have Social Anxiety, be a Introvert, be Anti-Social, or just dose not like to be around people.
This is called trench warfare!
The name comes from the trenches, that is the ditches that the soldiers built.
This warfare was typical in the First World War and it led to frequent stalemates: the trenches are easy to defend but hard to attack so for long periods of times the front remained stable.