Child Fares on the Subway and Bus?

The MTA always seems to be raising its fares, which always begs the question: "When exactly do we start paying for our kids to ride the subway." I've gotten so used to shuffling them under the turnstile, it occurred to me that at some point I'm probably supposed to start paying for kids to ride the subway.
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Well, I looked it up and children are supposed to pay full fare when they are over 44 inches. By my calculations that means that you should start paying for your child when they are about five-years-old. Um, right, perfect timing... for my second child.
About the Author

Founder & CEO of Mommy Poppins
Anna was born in Park Slope, spent her early years in the West Village. By the time she graduated high school, she had lived in 4 of the 5 boroughs. Growing up in NYC in the '70s meant the streets were her playgrounds. Museums and avant garde music venues were the kid-friendly activities. And living downtown taught her the importance of creating community for families in NYC.
Now, raising her own two children in the city, she tries to create the same sense of magic and community she felt growing up, despite today's more commercialized version of kid-friendly New York.
She started Mommy Poppins in 2007 to share a more artsy, educational, uncommercial, community-oriented vision of raising kids in New York City. Today Mommy Poppins is relied on by millions of families as the authority on the best things to do with kids beyond New York City: from Boston to Philly, Los Angeles, Houston and travel guides for dozens more cities and destinations.