I agree about the movement assessment.
Squat, deadlift, lunge, horizontal / vertical push / pull.
Stuff is probably required in order for her to learn to do these movements safely.
They are movements that people should be able to do.
Unless they are happy about eventually breaking a hip because they can't balance themselves, or hurting their back picking up their shopping, or needing to use their arms to pull themselves up off the toilet, or hurting their backs putting tins of food up on the taller shelf.
Glute activation, ab activation, shoulder stability, hip mobility etc.
If you know about this stuff then sweet. But then if you know about this stuff you probably wouldn't be asking us...