While the 17-year-olds say they are very close and they have enjoyed being at school together, they are each looking forward to carving out their own paths.
Not surprisingly, the girls say they have many similar likes, such as sushi, playing and coaching netball, a love of art and a wide variety of musical tastes — they even share friends and some clothes.
But after nearly 13 years at school together, they are starting to look forward to exploring their differences.
Next year, Caitlin hopes to work towards being a primary school teacher and sports coach.
"I would love to do something in a field that interacts with children, because I’ve really enjoyed coaching and peer-mentoring at school."
Abbey wants to do something that helps others and is planning to study nursing at Otago Polytechnic.
Meanwhile, Tayler is deciding whether to become a vet or a doctor.
"Ever since I was really little, I’ve wanted to be a vet.‘‘I was really obsessed with animals. As a joke, I was banned from pet shops by the rest of my family because every time I went to one, I’d want to come out with a puppy or something."
Strangely, in a roundabout way, the trio agreed their impending separation would actually bring them closer together.
"I was talking to mum about it the other day, about how we’ve always been at school together and soon we’re going to separate," Caitlin said.
"But because we’re all the same age, we’ll still have that close bond.
"I’m looking forward to going out and doing my own thing.
"It’ll be great because we’ll have [social] lives that are not all connected by school any more.
"When we catch up and talk, we’ll have so much more to talk about."
Abbey said whatever happened in their lives, they always knew someone had their back, and that would continue.
"We’re quite supportive of each other. We always know when someone’s feeling down, and we help them."
The Otago Daily Times has followed the trio’s journey from birth and photographically documented many of their milestones.
They have always been obliging when asked to share their lives publicly, because they know what they have is rare and special.
When it was suggested the next ODT catch up should be when all three get married on the same day, they saw the humour in the idea, as unlikely as it sounds.
"That would be so cool," Abbey said.