By waiting, does a girl minimize her chances of meeting someone based on ‘the good ones will be taken’
I would guess so. But that is not enough of a reason to push someone to get married. If someone doesn’t want to get married, they probably shouldn’t.
Why doesn’t she want to get married? Either you are close enough to her to know the answer or you aren’t. If you aren’t, I would say it probably isn’t your job or business to further involve yourself. If you know the answer, well, what is it?