I'm about 8 years younger than you, but I think anyone can have great success on SBD as long as they follow the plan, watch their calorie intake, and get some moderate exercise. And don't forget the importance of drinking water.
It's a very sensible, healthy way of eating that works for everyone, regardless of age.
One of our mods, Ruth
, is closer to your age and will probably be able to give you some good input. I hope you decide to join us!