Time Out has picked family-friendly Fifth Avenue in Park Slope as this year’s coolest street in New York City. The magazine says it chose the quiet central Brooklyn boulevard because of its cafes, mom-and-pop shops and a parenting scene they described as a “mommy Mafia” The selection of Fifth Avenue ranked 13th globally on Time Out’s annual Coolest Streets in the World list. 5 Miles Spilliane 35, musician and bartender, lives on Fifth