Babyccinos = frothy cups of steamed milk topped with cinnamon or chocolate, with or without a small shot of decaf espresso, currently sold for $2.00 at a growing number of coffee shops around Brooklyn...
Some think it's a lovely way to make your child feel like they're on a special "grown-up" date, while others think it's a silly trend.
In general, I think "debates" like this tend to get blown way out of proportion (and often serve as an excuse to slam places like Portland and Brooklyn, a tired trend of its own) but if you care to learn more about it, these articles will get you up to speed:
Babyccinos Are Cappuccinos for Babies | Eater
Coffee ... for kids! 'Babyccinos' are espresso shots for tots | Brooklyn Paper
Confessions of a Babyccino Drinker | The New Yorker
(Image: KSEE News)