NYU is not for everyone. If your student is an intellectually curious and internationally-minded go-getter, this is the comprehensive research university for him/her/them. Our young adult "child" is loving every moment at NYU --the professors, advisors, roommates, classmates, fellow club members...
I think the city is really what you make of it. It can be hard to adjust and get used to this environment but once you have the chance to settle down and pace yourself, it'll be much easier to navigate. The freedom that comes with this school is amazing, but can also be daunting...