DISCLAIMER: All characters are the property of Disney, etc etc.
Now, a few notes about my setting. Tech level is around the mid to late nineties. Cell phone tech is at the Nokia3310 level, and internet is still young. The USA as such doesn't exist, the America's being a sort of confederation of Native American tribes which have grown into small states with their own tech. The pacific islands and Australia are a single government, and countries like Arendelle and Corona Kingdom are small states. None of the characters are royalty, though for example Anna and Elsa are from influential and rich families.
The age of legal maturity is 16, and the minimum age to compete in the olympics is the same. This single line makes it easier for me. Ages and sports as they are now are below. Yes, there is femslash involved, but also canon relationships. Others can be added as it goes.

Faculty:
Zeus - Headmaster Phil - Head coach Gaston - Assistant head coach summer sports Li Shang - Martial Arts coach Maui - Sailing/Surfing coach Triton - Swimming coach 'Gramps' Pabbie - Assistant Head coach Winter sports Olaf - Pabbie's assistant Kristof - Winter sports groundskeeper Flynn Rider - Fencing instructor Maleficent - Assistant Headmaster, head of curriculum The seven brothers - Groundskeepers Doctor Facilier - Chief of medicin Beryl "Blue" - Head Nurse Tinkerbell, Periwinkle - Assistant nurses

Hercules - Decathlon (17)
Megara - Sprinting (16)
Nala - Swimming (16)
Simba - Four throwing events (18)
Anna - Snowboarding (16)
Elsa - Speedskating (18)
Rapunzel - Fencing (17)
Ariel - Swimming (16)
Nani - Windsurfing (18)
Lilo - Windsurfing (12)
Moana - Two-man sailing (16)
Eric - Two-man sailing (18)
Adam - Sprinting (17)
Belle - Equestrian (17)
Mulan - Equestrian/Judo (15)
Philip - Equestrian (17)
Merida - Equestrian/Archery (15)