Training access is its own legal question
The ADA FAQ distinguishes a trained service dog from one still learning. The Colorado Judicial Branch’s ADA guidance explains that C.R.S. 24-34-803 also protects trainers and individuals with disabilities accompanied by service animals in training. Check the applicable setting and retain control of the animal.
Intimidation is not a substitute for assistance
Aggression or uncontrolled protective behavior is not an appropriate substitute for a disability-related task. Seek professional advice if safety or reactivity is a concern.

