Airports used to be Gemma Raeburn-Baynes’ racetrack. She remembers dashing from one gate to the next, suitcase wheels rattling behind her. These days, she plays it smarter. At 75, she orders a wheelchair when she books her ticket, and by the time she lands on the Caribbean island of Grenada or the Dominican Republic, there’s someone ready at the gate to wheel her right through customs and into a taxi.

“I don’t feel bad about it anymore,” she says, laughing. “It makes the trip smoother. And sometimes later, people see me dancing and say, wait a second, didn’t you just arrive by wheelchair?” I just smile and think, well yes, but at my age, that chair saves my energy so now I can enjoy myself.”