No. Disabled and sick people are all around you. This is why you should have been taught in your CPR class to check for a medical ID tag that might, for example, say that the person doesn't want to be resuscitated.
Also just because someone is disabled doesn't necessarily mean they don't want CPR. That's their choice and not yours, just respect it. Denying disabled people CPR without consent during the pandemic in the UK and Canada did significant damage to public education around when you might want not want CPR.
I learned CPR on a Wilderness First Responder course. They keep adding more medical training because the wilderness is increasingly accessible to disabled and sick people. The sidewalk in the middle of civilization is much easier to get to than that.
Edit: This is a reason however to continue CPR longer in certain cases like drowning (especially in cold water) and lightning strikes.