How often is bathroom assistance or diapers a part of your job?

I always thought I’d para at my kids’ school once they’re both school-aged (I’m a SAHM now) but then I saw someone say they were forced to do toileting and I guess I didn’t realize that was a typical role for a para. I figured it was more of a specialized/special education para type situation. I don’t mind doing diapers/pull ups in the preschool crowd, but really have no desire to do wiping butts or changing diapers with older kids.

So is that something that always falls under the job description of an elementary school para in your experience?