I have attendees who are fit and trying to maintain their current balance and attendees who are over 100 years old, poor vision and use canes and walkers and are fall risk. The class is open to all who live in the community.
You can incorporate chairs for the attendees in poor fitness condition and they can do variations of the exercises you choose. Use resistance equip such as free weights or resistance bands and incorporate exercises that include alternating sides to help improve muscular balance.