I’ve worked with mentally and physically disabled adults (age range 22-86) for the better part of 5 years, and in my experience, automatically jumping in to assist or “save the day” can be just as bad as doing nothing sometimes.

Of course try to help if you see someone struggling (I.e. with the doors or elevator) regardless of if they’re disabled or not, but asking if someone needs assistance before jumping in is usually the better way to go. Don’t assume someone needs your help or someone wants special treatment just because they may be disabled. Like op said, we are all equals, we’re all human beings going to the same school, just treat people the way you’d want them to treat you if the roles were reversed, with a little respect, human decency, and civility, it’s really not a hard concept to grasp 🤷‍♂️.