Not a single complaint. Not even a sibling spat. Not while we’re biking in sweltering 100-degree weather. And not while we’re biking in a downpour. “I’ve never seen 30 people volunteer to bike in the rain, and smile about it,” said my daughter, Reggie Foldes. Anyone who has traveled with kids knows it’s rare–very rare–for such amiability on a family vacation. “We’re usually arguing about everything, even where to eat,” said Jenna Bronfman, 18. That’s one reason why her parents and the other families had signed on for this Backroads trip for families with “Older Teens and 20-Somethings” in Europe. “Backroads takes all that stress away,” explained Jenna’s dad, Matt Bronfman, noting this is his family’s fourth Backroads trip.