By "NYC parent" you mean people who actually live here especially in Manhattan and I am excluding tourists as NYC parents as it is beyond me that why in the world would anyone want to bring their young kids on a trip to the New York City! Why did you never think about moving to somewhere peaceful as in New Jersey to raise a family? A lot of my coworkers moved there the moment they decided to have kids. I will move there or to some outer borough or outside of NYC eventually if I decide to have kids of my own one day.
I have seen parents fighting with homeless people on the subways when they try to interact with their kid. I have seen parents using twin-strollers just for one kid. Confirmed by my own neighbor, this is actually a “trick” that most young parents use in NYC. It apparently gives them more room on the walk path or in the subway and they can use the secondary space for groceries etc.