Female college students who have recently become monks in Shandong usually like to chant Buddhist scripture and be quiet and vegetarian. In our opinion, her future is very good. I graduated from a key university with a good job, a good family and good looks, but we don't know the truth. What do people think? What happened to them? Are they happy? I don't know. Many things can't be seen from the outside. So I can't guess right.
Some people do it for love, others because life is not smooth, and so on. (This is more common) And they are really indifferent to these things, just think that this religious statement is right and suitable for that kind of life.
Maybe it's fashion. For example, many people like clothes with literary style, cotton and linen fabrics and Mori women. Do you like to wear beaded bracelets? There are also a group of people who like to travel to Tibet. Do they think this is a kind of spiritual purification or something? Now this is a fashion, and it does not rule out that some people regard becoming a monk and wearing a cassock as a personality fashion.
For various reasons, it is impossible to guess.