I consider myself a tough traveller and never gave a second thought to whether having two kids under two would stop my wandering (of course it wouldn’t). But a recent flight from Colorado with my toddler nearly broke me. Not one to sit still for long, she howled and thrashed until I feared the seatbelt might hurt her, leaving no choice but to release her to rummage under the seats in front of us (apologies to the passengers in row 27). This trip, I knew, was one I would never forget.

It’s safe to…