Then they shouldn't be instructors if they lack the competence to demonstrate a bounce. It doesn't have to be a huge aircraft wrecking bounce where nothing is learnt. A normal round-out and greaser touch down followed by gentle pull back on the stick to simulate over-controlling on the elevator to a few feet to simulate a bounce and then a touch of power to ease the aircraft back on the runway. What could be more simple?
My ab initio Instructor
(PD) did precisely the above!
Which is why I never had any problems if I ever bounced in later flying.
Come to think about it though; I cannot remember when I last did!
Anyway, Thanks,
PD.